Accessories & Supplies

41 Best 400w atx power supply 2022 – After 242 hours of research and testing.

Written by Toni Morrison

Now that you are here, you must be looking for the best 400w atx power supply! If you aren’t for it, you shall use our search and look for the topic you are interested in. As this piece is a lengthy one and covers a few more aspects other than the best list, they are the best 400w atx power supply brands in United States of America and a buyer’s guide for making an informed buying decision.

Before we begin with the list, We ask you to make a list of things that you are looking for in a 400w atx power supply. It could be anything which you’ll require when doing tasks. This will help you have some clarity about the important things and will help you save money by not overspending on the features you won’t use or a product that has more features!

You surely are here for being able to make an informed buying decision when it comes to 400w atx power supply and you must be looking for the list, We know that! But before we begin, we’d like to tell you that, this is the most unbiased list ever, it has specs, lists down the features of the 400w atx power supply, best brands and has a dedicated buyer’s guide for people in United States of America.

Full Disclosure: This article might have a few external links to Amazon and other informative sources. When you make a purchase on Amazon using our link, we’ll earn a small fee without you having to pay extra for the item. This helps us keep the site running and publishing more awesome content, add more research and never let people buy bad-quality products!

Best 400w atx power supply in 2022

1. C2G Power Cord, Replacement Power Cable, 3 Pin Connector, For Computers, TVs, Monitors, & More, 18 AWG, Black, 10 Feet (3.04 Meters), Cables to Go 03134 -Power Cables

By C2G
  • Heavy-duty 18 gauge cord is fully molded for maximum durability.
  • Perfect for TVs, computers, and other gadgets.
  • Use this versatile 10ft power cable to reach your gear & deliver safe, reliable power
  • Universal design works with your PC, monitor, TV, printer, or other devices with a 3 pin power connection.
  • C2G cables are both effective & safe to use.
  • All C2G cables are ensured for quality and durability.
  • Tested for safety, performance, and compliance by UL
  • Replaces lost or worn-out power cords
  • Have a problem with your new power cable? We’re here to help
  • Compatible with any device powered with a 3 pin connection

2. Tripp Lite SMART1500LCD 1500VA Smart UPS Battery Back Up, 900W Rack-Mount/Tower, LCD, AVR, USB, DB9, 3 Year Warranty & Dollar 250,000 Insurance Black -Power Cables

By Tripp Lite
  • 8 outlets protect small servers, desktops & all peripherals: 8 outlets provide ups power backup & surge protection (for small server, desktop, monitor, lcd, network workstation, audio/video components, media center, keyboard, external hard drive, wireless router, iot device)
  • Work through short back outs and maintain a network connection / save files safely during longer blackouts: 1500VA / 900W Smart LCD Battery Backup Uninterruptible Power Supply (UPS) provides up to 11.8 min of half load runtime / 4.4 min of full load runtime
  • AVR corrects brownouts & over voltages without using battery power: Otherwise known as automatic voltage regulation, this conserves battery power for critical blackouts; Also features tel/dsl/ Ethernet protection
  • Ups housing material: Abs; Free management software: USB port & free software enable unattended system shutdown and power management; High 98 percent efficiency in line power mode

3. Amazon Basics Computer Monitor TV Replacement Power Cord – 10-Foot, Black -Power Cables

By Amazon Basics
  • SAFETY RATED: UL listed for safety; durable design for long-lasting strength and performance
  • FOR 3-PIN DEVICES: Works with most PCs, monitors, printers, and other devices that accommodate a 3-pin power connector
  • DYNAMIC USE: Ideal for use as a replacement to an old or missing power cord or simply as a handy backup
  • IN THE BOX: (1) 10 foot power cord
  • UNIVERSAL POWER CORDS: 10-pack of 18 AWG (American wire gauge) universal power cords (NEMA 5-15P to IEC320C13)

4. EVGA Supernova 650 GT, 80 Plus Gold 650W, Fully Modular, Auto Eco Mode with FDB Fan, 7 Year Warranty, Includes Power ON Self Tester, Compact 150mm Size, Power Supply 220-GT-0650-Y1 -Power Cables

By EVGA
  • 7 Year Limited and unparalleled EVGA Customer Support
  • 100% Japanese Capacitors OVP, UVP, OCP, OPP, SCP, and Dual OTP Protections
  • 80 PLUS Gold certified, with 90% (115VAC) 92% (220VAC – 240VAC) efficiency or higher under typical loads
  • Fully Modular to reduce clutter and improve airflow
  • Fluid Dynamic Bearing Fan and EVGA Auto ECO Mode for ultra-quiet operation and increased lifespan

5. EVGA 750 N1, 750W, 2 Year Warranty, Power Supply 100-N1-0750-L1 -Power Cables

By EVGA
  • Fan Size/ Bearing: 120 millimeter Sleeve bearing ; quiet and intelligent auto fan for near silent operation
  • Heavy duty protections, including OVP, UVP, OCP, OPP, and SCP
  • Operating Temperature: 0 degree to 25 degree Celsius
  • EVGA 750W N1 Series

6. Amplifier Power Cord Compatible Guitar Amp, ION Block Rocker, Job Rocker, Explorer Portable Speaker System, ION iPA76C iPA76A iPA76S IPA23 Block Party & Live Wall Cable 3 Prong Replacement-UL Listed -Power Cables

By TONIWA
  • Power Cord Type: 3-Slot, 18 AWG; Length: 6 Ft; Color: Black.
  • UL Listed: Tested, Approved and Certified by UL; Made With High Quality Materials, Resistant to Bending and High Temperatures, Using More Safety.
  • Work for: ION Speaker System, ION iPA76 iPA76A iPA76C iPA77 iPA76S IPA23 Block Rocker, Block Party & Live, Job Rocker, Explorer Portable Speaker System.
  • Warranty: 30 Days Money Refund and 24 Months Exchange.
  • Also work with: Guitar Amplifier Musical Amp — Fender Electric Guitar Amplifier, Marshall Amplifier and More Devices Requiring 3 Slot Power Cord (Please Check the Connector Picture).

7. Thermaltake Smart 500W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Cooling Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0500NPCWUS-W -Power Cables

By Thermaltake
  • Supports (2) PCI E 6plus2pin Connectors
  • Equipped with a powerful plus 12 Volt rail, superior performance under all types of system loading
  • Compliance with Intel ATX 12 Volt 2.31 and EPS 12V 2.92 standards
  • Active (PFC) Power Factor Correction, MTBF: 100,000 hours
  • Industry Grade Protections: (OPP) Over Power Protection, (OVP) Over Voltage Protection, (SCP) Short Circuit Protection
  • Delivers 500 Watt Continuous output at plus 40 degree
  • High Quality Components
  • 5 Year Warranty
  • 80 PLUS Certified, 80 percentage efficiency under typical load

8. Corsair SF Series, SF750, 750 Watt, SFX, 80+ Platinum Certified, Fully Modular Power Supply (CP-9020186-NA) -Power Cables

By Corsair
  • Continuous output rated temperature C-50°C
  • Harness 750 continuous watts In SFX form, perfect for the most power-dense small-form-factor PCs
  • Delivers powerful cooling with Low-Noise operation
  • Fan bearing technology: Rifle Bearing
  • Allows installation into both small form Factor and ATX cases
  • Ensures ultra-high efficiency operation for less excess heat and lower operating costs
  • Flexible Para cord sleeved cables make routing and cable management incredibly easy

9. EVGA SuperNOVA 650 Ga, 80 Plus Gold 650W, Fully Modular, ECO Mode with Dbb Fan, 10 Year Warranty, Compact 150mm Size, Power Supply 220-GA-0650-X1 -Power Cables

By EVGA
  • Double ball Bearing fan and EVGA eco mode for exceptional reliability and quiet operation
  • Fully modular to reduce clutter and improve airflow
  • 100% Japanese capacitors, LLC resonant circuit design +DC-DC converter design to improve 3.3V./ 5V
  • Stability
  • 80 plus Gold certified, with 90% efficiency or higher under typical loads

10. Asiahorse Customization Mod Sleeve Extension Power Supply Cable Kit 18AWG ATX/EPS/8-pin PCI-E/6-pin PCI-E (White) -Power Cables

By ASIAHORSE
  • 2.Each psu cables comes in 300mm in length with black connectors on both ends,includes cable combs (3Pcs each cable)
  • 5.Two color cable combs: Black and white combs in the package, which can be used with your case according to your preference.
  • 4.For a clean cable management and a uniform design offers a better solution to modding enthusiasts with M/B and PCI-E Cables
  • 1.1×24 Pin ATX Extension Cable, 1x(4+4)Pin EPS Cable,2×8-Pin PCI-e Cable,2×6-Pin PCI-e Cable
  • 3.TRIPLE layer cable weaving design with 18AWG wire,pass test Mechanics

11. CyberPower OR500LCDRM1U Smart App LCD UPS, 500VA/300W, 6 Outlets, AVR, 1U Rackmount -Uninterruptible Power Supply (UPS)

By CyberPower
  • MULTIFUNCTION LCD PANEL: Provides runtime in minutes, battery status, power conditions, alerting users to potential problems before they can affect critical equipment and cause downtime; REMOTE MANAGEMENT: Requires optional RMCARD205 management card
  • SIX NEMA 5-15R OUTLETS: Four battery backup and surge protected outlets; Two Surge protected outlets; INPUT: 15A, NEMA 5-15P straight plug with 10 foot power cord
  • 500VA/300W Smart App LCD Uninterruptible Power Supply (UPS) System uses simulated sine wave output to protect department and workgroup servers, network devices, and telecom installations without Active PFC power supplies
  • AUTOMATIC VOLTAGE REGULATION (AVR): Corrects minor power fluctuations without switching to battery power, thereby extending the life of the battery
  • 3 YEAR WARRANTY – INCLUDING BATTERIES; dollars 300,000 Connected Equipment Guarantee and FREE PowerPanel Business Edition Management Software (Download)

12. EVGA 500 W1, 80+ WHITE 500W Power Supply( 100-W1-0500-KR) -Uninterruptible Power Supply (UPS)

By EVGA
  • Compatibility of the EVGA 500 W1, 80 white 500 W, Power supply 100 W1 0500 KR (100 W1 0500 KR)
  • Heavy duty protections, including OVP (Over voltage protection); UVP (Under voltage protection, OCP (Over current protection), OPP (Over power protection), and SCP (Short circuit protection)
  • 80 plus white certified, with 80 percentage efficiency or higher under typical loads
  • EVGA 500 Watt; Unbeatable value

13. Corsair RMX Series, RM750x, 750 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black -Uninterruptible Power Supply (UPS)

By Corsair
  • 100 percent industrial grade, 105°C rated Japanese capacitors ensure unwavering power and reliability
  • Tuned for low noise operation even at full load; MTBF hours 100,000 hours
  • Zero RPM fan mode for near silent operation at low to medium loads
  • Fully modular cables, so you only connect the cables your system needs
  • 80 Plus Gold certified for lower power consumption, less noise and cooler temperatures

14. Cooler Master V850 SFX Gold Full Modular, 850W, 80+ Gold Efficiency, ATX Bracket Included, Quiet FDB Fan, SFX Form Factor, 10 Year Warranty -Uninterruptible Power Supply (UPS)

By Cooler Master
  • Full-Modular Cabling: Modular cables reduce clutter, increase airflow, and improve overall efficiency and thermal performance.
  • SFX-to-ATX Bracket: With the included bracket, users can install the V SFX Gold securely to an ATX case.
  • 16 AWG PCI-e Cables: The thicker 16 AWG PCI-e cables allow for higher currents, thereby improving both efficiency and safety.
  • SFX Form Factor: High-quality PSU that’s compatible with all SFX cases and suitable for mini-ITX system builds.

15. EVGA 210-GQ-0650-V1 650 GQ, 80+ GOLD 650W, Semi Modular, EVGA ECO Mode, 5 Year Warranty, Power Supply, Black -Uninterruptible Power Supply (UPS)

By EVGA
  • Fan Size/Bearing: 135 millimeters fluid dynamic bearing
  • Modular design allows some cables to be removed from the power supply for ease of installation and removal
  • Heavy duty protections, including OVP, UVP, OCP, OPP, SCP, and OTP
  • 80 Plus Gold certified, with 90 percentage (115VAC) / 92 percentage (220VAC~240VAC) efficiency or higher under typical loads
  • EVGA 650 GQ: Great quality, great value
  • You can leave off unnecessary cables to reduce case clutter and maximize case airflow.

16. EVGA 100-GD-0600-V1, 600 GD, 80+ GOLD 600W, 5 Year Warranty, Power Supply -Uninterruptible Power Supply (UPS)

By EVGA
  • 3V./ 5V
  • Rail, DC DC converter to improve 3
  • 80 plus Gold certified, with 90% efficiency or higher under typical loads
  • Active power factor correction
  • Single 12V
  • Stability
  • Heavy duty protections, including OVP (Over voltage protection), UVP (Under voltage protection), OCP (Over current protection), OPP (over power protection), and SCP (short circuit protection)
  • 5 year and unparalleled EVGA customer support

17. Power Supply 500W 80 Plus Bronze Certified PSU (ARESGAME, AGV500) -Uninterruptible Power Supply (UPS)

By ARESGAME
  • 80 PLUS Bronze certified, with 85% efficiency or higher under typical loads
  • 120mm ultra quiet fan with excellent cooling performance
  • ATX 500w gaming pc power supply
  • 5 Years Warranty
  • OVP/UVP/OPP/SCP protection

18. EVGA 110-BQ-0600-K1 600 BQ, 80+ Bronze 600W, Semi Modular, FDB Fan, 3 Year Warranty, Power Supply -Uninterruptible Power Supply (UPS)

By EVGA
  • EVGA 600 BQ: Great quality, great value
  • Heavy duty protections, including OVP, UVP, OCP, OPP, and SCP
  • AC Input 100 to 240 VAC, 10 5A, 50 to 60 hertz; Operating temperature 0 degree to 40 degree Celsius
  • 80 plus Bronze certified, with 85 percent efficiency or higher under typical loads
  • Fan Size Bearing: 120 millimeters Fluid Dynamic Bearing quiet and Intelligent auto fan for near silent operation

19. EVGA SuperNOVA 550 Ga, 80 Plus Gold 550W, Fully Modular, ECO Mode with Dbb Fan, 10 Year Warranty, Compact 150mm Size, Power Supply 220-GA-0550-X1 -Uninterruptible Power Supply (UPS)

By EVGA
  • Stability
  • Double ball Bearing fan and EVGA eco mode for exceptional reliability and quiet operation
  • Fully modular to reduce clutter and improve airflow
  • 80 plus Gold certified, with 90% efficiency or higher under typical loads
  • 100% Japanese capacitors, LLC resonant circuit design +DC-DC converter design to improve 3.3V./ 5V

20. EVGA 700 GD, 80+ GOLD 700W, 5 Year Warranty, Power Supply 100-GD-0700-V1 -Uninterruptible Power Supply (UPS)

By EVGA
  • 80 plus Gold certified, with 90% efficiency or higher under typical loads
  • Single 12V
  • Rail, DC-DC converter to improve 3
  • 5 year and unparalleled EVGA customer support
  • Stability
  • Heavy-duty protections, including OVP (Over Voltage protection), UVP (Under Voltage protection), OCP (Over current protection), OPP (over Power Protection), and SCP (short circuit protection)
  • Active power factor correction
  • / 5V

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21. EVGA 110-BQ-0500-K1, 500 Bq, 80+ Bronze 500W, Semi Modular, FDB Fan, 3 Year Warranty, Power Supply -Internal Power Supplies

By EVGA
  • Heavy duty protections, including OVP, UVP, OCP, OPP, and SCP
  • Fan Size/ Bearing: 120 millimeter fluid Dynamic Bearing quiet and intelligent auto fan for near silent operation
  • 80 plus Bronze certified, with 85 percentage efficiency or higher under typical loads
  • EVGA 500 BQ “great quality, Great value”

22. Cable Matters 2-Pack 6 Pin to 8 Pin PCIe Adapter Power Cable – 4 Inches -Internal Power Supplies

By Cable Matters
  • 6 pin PCIe to 8 PIN PCIe adapter connects a PCIe video card with an 8 pin PCIe connection to a power supply with only 6 pin PCIe power connections; Check that your PSU is rated to power the video graphics card
  • PSU upgrade 6 pin to 8 pin adapter cable provides an option for connecting a power supply without an 8 pin PCIe connection for GPU power
  • 8 pin to 6 PIN PCIe adapter cable provides a convenient solution for supplying video graphics card power with an 8 pin connector for GPU cards that require more power
  • Sturdy graphics card PCIe power cable has an 8 pin male PSU PCIe connector with a latch and a female 6 pin PSU PCIe connector with keyed rails for a secure connection on each end to prevent accidental disconnections
  • Video graphics card compatible with graphics cards with 8 pin PCIe connectors from popular manufacturers such as Gigabyte, Radeon, and Sapphire

23. DROK 48V Power Supply, AC 110V/220V to DC 0-48V 10A 480W Buck Converter, Adjustable Variable LED Adapter Regulated 5V 12V 24V 30V 36V 48V Volt Voltage Transformer 10A Amp Charger for Lab CCTV Radio -Electronics

By DROK
  • Easy Operation This supply is no need to install, after connecting wire, it can be used to adjust output, which is convenient
  • Note——The maximum current is 10A
  • The voltage precision is 0.1V
  • This supply is suitable for 5V 9V 12V 24V 30V 36V 48V devices
  • Heat sink and cooling fan can control the temperature in a safe range
  • Wide adjustable output Voltage range: DC 0-48V
  • All of our item has one year long time warranty guarantee.
  • Only to rotate the potentiometer can adjust output parameter.
  • Hareware This Buck Converter is equipped with LED screen, heat sink and cooling fan
  • Note: the default input voltage is 220V, before using, please switching the input voltage to 110V/220V according to your city voltage.
  • The LED screen can clearly display the output voltage
  • During the running power is high, the cooling fan will automatically activate with little noise.
  • Volt Adjustment Input Voltage can be 110V or 220V
  • Protection Over Load Protection, Over Voltage Protection, Short Circuit Protection, which can protect your device from damage
  • But the actual current is depended on the load
  • No matter how many voltage is adjusted, the current is 10A and can not be regulated
  • It can be used as a 5V 12V 24V 30V 36V 48V power supply for RV, Car, Labtop, Computer, Lab, CCTV, Ham Radio, etc
  • Make sure to use the devices which is below 10A.
  • The potentiometer is inset into the supply
  • Wide Application This power supply has variable application
  • It can be used to device of 2A 3A 5A 10A

24. EVGA 600 Ba, 80 Plus Bronze 600w, Power Supply 100-Ba-0600-K1 -Internal Power Supplies

By EVGA
  • Rail with DC-DC Converter to improve 3.3V/5V stability
  • Active Power Factor Correction (PFC)
  • Single 12V
  • Quiet and Intelligent Auto Fan for near-silent operation
  • Heavy-duty protections, including OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), SCP (Short Circuit Protection), and OTP (Over Temperature Protection)
  • 80 PLUS Bronze certified, with 85% efficiency or higher under typical loads

25. ARESGAME Power Supply 650W 80+ Bronze Certified PSU (AGV650) -Internal Power Supplies

By ARESGAME
  • Full protection including OVP/UVP/OPP/SCP
  • 650w ATX gaming pc power supply
  • All cables are black and not ketchup and mustard colored
  • Silent and durable 120mm fan
  • 80 plus Bronze certified, with 85% efficiency or higher and very stable voltage output

26. EVGA 600 BR, 80+ Bronze 600W, 3 Year Warranty, Power Supply 100- BR-0600-K1 -Internal Power Supplies

By EVGA
  • 80 plus Bronze certified, with 85% efficiency or higher under typical loads
  • EVGA 600 BR – “Bronze reliability”
  • Heavy-duty protections, including OVP, UVP, OCP, OPP, SCP and OTP

27. eTopxizu 12v 30a Dc Universal Regulated Switching Power Supply 360w for CCTV, Computer Project, 3D Printer -Internal Power Supplies

By eTopxizu
  • You can choose the input voltage (110V/240V) by switch.
  • High quality Switch Power Supply Widely used in Industrial automation, LED display, communications, etc.
  • Smart device surge protection for Shortage Protection, Overload Protection, Over Voltage Protection
  • IN-DOOR USE ONLY!

28. Thermaltake Smart BX1 550W Bronze SLI/ CrossFire Ready Continuous Power ATX12V V2.3/ EPS V2.92 80 Plus Bronze Certified 5 Year Warranty Non Modular Power Supply PS-SPD-0550NNFABU-1 -Internal Power Supplies

By Thermaltake
  • CONNECTORS – 24 Pin x 1 / 4+4 Pin x 1 / SATA x 6 / PCI-E x 2 / Peripheral x 4 / FDD x 1
  • ULTRA QUIET 120MM FAN – Dynamic bearing fan s superior cooling performance and silent operation
  • 80+ BRONZE – Efficiency up to 88% and optimized for C6/C7 States Ready
  • 5 Year warranty
  • SINGLE +12V RAIL DESIGN – Powerful 12V+ single rail supports today’s GPU demands supporting DC to DC design for non-stop usage with stable reliable performance
  • MAIN JAPANESE CAPACITORS – Japanese capacitors provide superb performance and reliability
  • LOW RIPPLE NOISE – Ensure excellent power supply stability; keep performance-critical components, such as VGA card, to operate reliably for longer
  • INDUSTRY GRADE PROTECTIONS – (OPP) Over Power, (OVP) Over Voltage, and (SCP) Short Circuit protections

29. EVGA SuperNOVA 120-GP-0650-X1, 650 G+, 80 Plus Gold 650W, Fully Modular, FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, Power Supply -Internal Power Supplies

By EVGA
  • 80 Plus Gold certified, with 90 percent (115VAC)/92 percent (220VAC~240VAC) efficiency or higher under typical loads
  • Heavy duty protections, including OVP, UVP, OCP, OPP, SCP, and OTP
  • Fan Size/Bearing: 135 millimeter fluid dynamic bearing
  • EVGA 650 G+ “The New Gold Standard for Performance and Value” quoted “We were promised Gold but this one did Platinum”
  • 10 year

30. Corsair VS Series VS500 80 PLUS Certified Non-Modular ATX Power Supply -Internal Power Supplies

By Corsair
  • Certified 80 PLUS efficiency provides up to 85% operational efficiency, reducing heat and energy costs.
  • A compact 125mm-long casing ensures an easy fit in almost all modern PC cases.
  • A 120mm low-noise cooling fan with a specially designed fan curve spins at higher speed when your power supply is under heavy load and slows down for quieteroperation at lower loads.
  • A black powder-coated housing and flat, black cables seamlessly fit your PC’s style.
  • CORSAIR VS power supplies are guaranteed to deliver their full rated wattage of continuous power.

31. EVGA Supernova 850 GM, 80 Plus Gold 850W, Fully Modular, ECO Mode with FDB Fan, 10 Year Warranty, Includes Power ON Self Tester, SFX Form Factor, Power Supply 123-GM-0850-X1 -Internal Power Supplies

By EVGA
  • 100% Japanese Capacitors ensure long-term reliability
  • Fully Modular Design
  • Supports ECO Mode + FDB Fan
  • SFX Form Factor (Also supports ATX Form Factor with included bracket)

32. Power Supply 600W with ECO Mode, 80+ Bronze Certified, GAMEMAX VP-600 -Internal Power Supplies

By GAMEMAX
  • Highest ProtectionPowerful single +12V rails offer stable DC output and support high-end graphic card and PC system
  • Performance Ventilation design for optimal heat dissipation
  • 80 plus Bronze certified, with 85% efficiency or higher under typical loads
  • Japanese capacitors offer the highest stability, durability, and reliability, OPP/OVP/UVP/SCP/OCP electrical protection included.
  • Smart and silent fan control Low Noise 12cm Fan with intelligent fan speed control
  • After-Sale ServiceThe 36-month worry-free product experience process will be provided to you and the manufacturer will bear all the responsibility if any product problems happen.
  • Our brandGAMEMAX has been committed to manufacture PC components and provide OEM service for well-known brands from 2003 till now
  • The ECO switch allows users to customize their cooling needs by selecting between the Fanless Mode and the Silent Mode.
  • GAMEMAX’s products are of multiple international security standard certificates including CB, CCC, FCC, CE, etc.
  • Non-modular output wire rod, optimize routing requirements.

33. EVGA Supernova 1600 G+, 80+ Gold 1600W, Fully Modular, 10 Year Warranty, Includes Free Power On Self Tester, Power Supply 220-GP-1600-X1 -Internal Power Supplies

By EVGA
  • Stability
  • 80 PLUS Gold certified, with 90% efficiency or higher under typical loads
  • Fully Modular to reduce clutter and improve airflow
  • / 5V
  • Double Ball Bearing Fan and EVGA ECO Mode for ultra-quiet operation and increased lifespan
  • 100% Japanese Capacitors, +DC-DC Converter design to improve 3.3V

34. EVGA 220-B5-0650-V1 650 B5, 80 Plus Bronze 650W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply -Internal Power Supplies

By EVGA
  • 80 PLUS Bronze certified, with 89% efficiency or higher under typical loads
  • EVGA ECO Intelligent Thermal Control System eliminates fan noise at low to medium loads
  • Fully Modular to reduce clutter and improve airflow
  • Heavy-duty protections, including OVP, UVP, OCP, OPP, SCP, and OTP
  • 5 Year and unparalleled EVGA Customer Support

35. Coolmax 240-Pin 400 Power Supply with 1×80 mm Low Noise Cooling Fan (I-400) -Internal Power Supplies

By Coolmax
  • Serial ATA 150 ready
  • Connector: 1x 20+4-pin Main Connector; 1x?P4 Mainboard Power Connector; 2x 15-pin SATA Connectors; 3x Peripheral Connectors; 1x 4-pin Floppy Connector
  • Single +12V output design
  • Total Power: 400 W
  • ATX12V version 2.0
  • Cooling System: 1x 80mm Low Noise Cooling Fan
  • Input- 100 ~ 132V AC / 200 ~ 264V AC

36. EVGA 500 GD, 80+ GOLD 500W, 5 Year Warranty, Power Supply 100-GD-0500-V1 -Internal Power Supplies

By EVGA
  • Single 12V
  • 5 year and unparalleled EVGA customer support
  • Rail, DC-DC converter to improve 3
  • Stability
  • / 5V
  • Active power factor correction
  • Heavy-duty protections, including OVP (Over Voltage protection), UVP (Under Voltage protection), OCP (Over current protection), OPP (over Power Protection), and SCP (short circuit protection)
  • 80 plus Gold certified, with 90% efficiency or higher under typical loads

37. Thermaltake Smart RGB 500W 80+ 256-Color RGB Fan ATX 12V 2.3 Kaby Lake Ready Power Supply 5 Yr Warranty Power Supply PS-SPR-0500NHFAWU-1 -Internal Power Supplies

By Thermaltake
  • 5 year warranty
  • Single +12V rail design: Eliminating the limitations caused by Voltage Distributions
  • Patented RGB LED fan: Adopts 10 LED light Bulbs to enhance the brightness and spawn an advanced user experience in the world of illumination
  • One button to 15 lighting modes: With RGB lighting button, fan color can be switched among variants including pulse light (7 colors), 256 color RGB cycle, Solid light (7 colors), and a LED off mode
  • 80 plus Certified: Deliver up to 87% efficiency to Promise Low power losses

38. EVGA 550 B5, 80 Plus BRONZE 550W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply 220-B5-0550-V1 -Internal Power Supplies

By EVGA
  • EVGA ECO Intelligent Thermal Control System eliminates fan noise at low to medium loads
  • 5 Year and unparalleled EVGA Customer Support
  • 80 PLUS Bronze certified, with 89% efficiency or higher under typical loads
  • Heavy-duty protections, including OVP, UVP, OCP, OPP, SCP, and OTP
  • Fully Modular to reduce clutter and improve airflow

39. EVGA 650 Bq, 80+ Bronze 650W, Semi Modular, 5 Year Warranty, Includes Free Power On Self Tester, Power Supply 110-BQ-0650-V1 -Internal Power Supplies

By EVGA
  • Fan Size/ Bearing: 140 millimeter Teflon nano steel Bearing quiet and intelligent auto fan for near silent operation
  • 80 plus Bronze certified, with 85 percent efficiency or higher under typical loads
  • EVGA 650 BQ “great quality, Great value”
  • Heavy duty protections, including OVP, UVP, OCP, OPP, and SCP

40. Apevia ITX-AP300W Mini-ITX / Flex ATX 300W Solid Power Supply – Black -Internal Power Supplies

By Apevia
  • Output: +3.3V@12A, +5V@12A, +12V@20A, -12V@0.3A, +5Vsb@2.5A
  • Connectors: 1 x 20+4pin Main Power, 1 x 4pin 12V(P4), 2 x SATA, 2 x 4pin Molex, 1 x 4pin Floppy
  • Standard Mini-ITX / FLEX ATX type, Maximum Power: 300W
  • Dimension: 150mm x 81.5mm x 40.5mm (5.9″ x 3.21″ x 1.59″) – L x W x H
  • Cooling: Forced Air Ventilation by 1 x 40mm Double Ball Bearing Fan

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41. Gigabyte GP-P450B (80 Plus Bronze Certified, Quiet Fan, Active Power Protection, Power Supply) -Internal Power Supplies

By Gigabyte
  • 120mm Smart Hydraulic Bearing Fan
  • Meet ErP LOT6 2013 (< 0.5W at standby mode)
  • High Quality Reliable Japanese Capacitors
  • OPP/UVP/OVP/SCP/OCP protection
  • 80 PLUS Bronze Efficiency
  • 450W Power Capacity with Powerful Single +12V Rail
  • 3 years warranty

400w atx power supply – The Buyer’s Guide

You must have checked the above list, aren’t you mind-blown by the quality of products? Well, if you are then here’s a secret formula which we’ve used to choose them. You can use them too! The best part is, it works for all the product purchases you make! Besides, wouldn’t it be helpful to you, if you knew the factors we’ve considered to choose the 400w atx power supply in the above list? So shall we begin with the guide and help you learn about the important factors?

1. Does it have the features you need?

Wait for a minute before you buy the 400w atx power supply, check if it has all the features in your requirement list! If it doesn’t have them, then you should avoid buying that particular model and start looking for an alternative. We always suggest our editors to make a list of important features before adding a product to a list and based on the feature, the quality of the product, brand-assurance, rank it! So if it has all you need, you should not mind paying a bit extra. However, if you end up buying the best 400w atx power supply which doesn’t have the feature you need the most, then it won’t make sense! Would it? To us, it wouldn’t! That’s why you should make up a list which includes the features you are looking for, technical specifications if any, etc and come up with a budget.

2. Budget and Price Match

Well, you obviously can’t buy the best 400w atx power supply with a low budget. That’s why it’s important to make note of all the important features, specs, factors and come up with a budget. Once you are ready with it, look for the products which are either equal to your budget or are close to it. Stick to the budget, because while browsing, you’ll see a model which is slightly better and has an additional feature with a really small price difference. Well, in that case you’ll have to calculate the price of the product which has all the required features and the 400w atx power supply with the additional features. See if the difference in amount is worth for the feature? If you don’t have second thoughts, you shall probably increase your budget.

3. Warranty and Brand

Most of the 400w atx power supply industry experts we got in touch suggested us to always buy the one which comes from a reputable brand. They also explicitly asked us to include the best brands so that users don’t buy the models from unknown brands or non-reputable companies. Because 400w atx power supply from an unknown brand might be cheap at first glance, but could have high-maintenance and could cost a lot in repairs.

Another benefit of buying a 400w atx power supply from a reputable brand would be warranty. Most of the 400w atx power supply from reputable brands come with good warranty. However, cheap products do come with a warranty, but claiming it can be a herculean task. That’s why buy the models which come from known brands and have good warranty.

4. Check for Reviews and Ratings

Back then when the Internet wasn’t as big as it is today, local stores charged high and even ended up selling the products which sucked or wasn’t future proof. It’s because the salesman threw technical terms and confused the buyer. But nowadays, there are sites like ours which does all the research and lists down the best models and there are eCommerce stores like Amazon which has user reviews which can be read to know the experience of the user with that particular 400w atx power supply. Isn’t it great?

The Verdict

We hope that you loved the 400w atx power supply we’ve listed in our best list. If it has been helpful, please bookmark our website and share it with people you know whenever they plan to buy something.

To wrap up this guide,

About the author

Toni Morrison

Toni is the Senior Writer at Main Street Mobile. She loves to write about the Internet and startups. She loves to read stories of startups and share it with the audience. She is basically a Tech Entrepreneur from Orlando. Previously, She was a philosophy professor. To get in touch with Matt for news reports you can email him on toni@mainstreetmobile.org or reach her out on social media links given below.

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