Top 9 400W Power Supply ATX – Computer Power Supplies

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1. Thermaltake


Thermaltake Smart 430W 80+ Black Continuous Power ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0430NPCWUS-W

Thermaltake #ad - 5 year warranty. Supports 2 pci-e 6+2pin connectors. 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 430w continuous output at +40℃. 80 plus certified: 80% efficiency under typical load. Compliance with Intel ATX 12V 2. 31 & eps 12v 2. 92 standards.
BrandThermaltake #ad
ManufacturerThermaltake #ad
Height7.25 Inches
Length9 Inches
Weight3.3 Pounds
Width4 Inches
Part NumberPS-SPD-0430NPCWUS-W

2. Apevia


APEVIA SFX-AP400W Mini ITX Solution / Micro ATX / SFX 400W Power Supply

Apevia #ad - Dimension: 125mm x 100mm x 63. 5mm 4. 92" x 3. 94" x 2. 5" - l x w x H. Output: +3. [email protected], [email protected], [email protected], [email protected], [email protected] 5a. Apevia sfx-ap400w mini itx solution / micro atx / SFX 400W Power Supply. Cooling: 1 x 80mm automatically Thermal Sensing Fan. All cables are Sleeved. Connectors: 1 x 20+4pin main power, 2 x 4pin molex, 1 x 6/8pin pcie, 2 x SATA, 1 x 4pin 12VP4, 1 x 4pin Floppy.
BrandApevia #ad
ManufacturerApevia #ad
Height2.5 Inches
Length5 Inches
Weight2.1 Pounds
Width4 Inches
Part NumberSFX-AP400W 
Warranty1 Year

3. Rosewill


Front I/O: 2x USB 3.0 and Audio In/Out and 90mm rear case fan R521-M, steel computer case + 400w power supply, ROSEWILL Micro ATX Mini Tower Computer Case with PSU

Rosewill #ad - Sturdy construction: to level up the experience for users, R379-M is a solid body with vented PCI-E slots and perfectly ideal for intel and AMD systems. With solid and cool front panel, R379-M gives you a better option of your office desktop.

Excellent airflow: with 1 x 90mm rear computer case fan, ROSEWILL R379-M offers the optimized ventilation to our users for long time operation. Pc case + power supply: excellent mini tower computer case with 400W power supply psu delivers the best solution for your computer system. Easy access i/o port: this is an office computer case with 2 x USB 3. 0, audio in/out front ports to offer the easy access to this computer case at the front. Stylish aluminym look: this mini tower has an aluminym-look front panel.
BrandRosewill #ad
ManufacturerRosewill Direct #ad
Height14.25 Inches
Length17.2 Inches
Weight11.95 Pounds
Width7 Inches
Part NumberR521-M
Warranty1 year

4. Cooler Master


Cooler Master Elite 500W Ver.3, ATX Power Supply Quiet 120mm Fan PCI-E Support

Cooler Master #ad - Higher temperature resistance - capable of operating at 40°C under full load allowing longer lifespan in warmer environments. 75% efficiency - maintains an average efficiency of 75% at 50% load.

Peak power tolerance - can reliably push an additional 50W at peak power load for up to 10 seconds. Active pfc + forward topology design - constructed with protective measures normally found in high-end power supplies to increase safety and current stability. Super resilient - the elite v3 will perform consistently in whatever environment you throw at it whether it's high altitudes above 5000 meters or Ultra humid settings like a tropical rain-forest.
BrandCooler Master #ad
ManufacturerCoolermaster #ad
Height3.39 Inches
Length5.51 Inches
Weight3.84 Pounds
Width5.91 Inches
Part NumberMPW-5001-ACAAN1-US

5. Coolmax Technologies


Coolmax 400W SATA&20/24pin Power Supply V-400

Coolmax Technologies #ad - Universal connector Fits Most Of Branded Motherboard. Cable-tube on main power cables for better cable routing and neatness. Over voltage protection, Short Circuit Protection On All Output Level. Serial ata 150 ready and fully support AMD and Intel series demand. 80mm silent fan design, long life, noiseless and fast cooling time. Specially selected components and high performance heat sink to cool down system.
BrandCoolmax Technologies #ad
ManufacturerCoolmax Technologies #ad
Height1 Inches
Length1 Inches
Weight1 Pounds
Width1 Inches
Part NumberV-400

6. Apevia


115/230V Switch, All Protections, APEVIA VENUS450W 450W ATX Power Supply with Auto-Thermally Controlled 120mm Fan

Apevia #ad - Auto-thermally controlled Black 120mm Fan. Connectors:1 x 20/24pin main power, 3 x satA, 3 x peripheral, 1 x 4pin 12V, 1 x Floppy.5% tolerance of 5v, 3. 3v & 12v output. Apevia venus 450w ATX Power Supply. Short-circuit/over-current/Over-Voltage/Over-Power/Under-Voltage/Over-Temperature Protections. 115/230v switch.
BrandApevia #ad
ManufacturerApevia Corp #ad
Height3.4 Inches
Length5.9 Inches
Width5.5 Inches
Part NumberVENUS450W



EVGA 500W 80PLUS Certified ATX12V/EPS12V Power Supply 100-W1-0500-KR

EVGA #ad - Evga 500 watt; Unbeatable value. 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. 3 year warranty. Compatibility of the evga 500 w1, 80+ white 500 w, power supply 100 W1 0500 KR 100 W1 0500 KR.
BrandEVGA #ad
ManufacturerEVGA #ad
Height3.35 Inches
Length5.51 Inches
Weight4 Pounds
Width5.91 Inches
Part Number4250812401779
Warranty3 year



ARESGAME Power Supply 500W 80+ Bronze Certified PSU AGV500

ARESGAME #ad - Silent and durable 120mm fan. Full protection including ovP/UVP/OPP/SCP/OCP/OTP. 500w atx gaming power supply. 80 plus bronze certified, with 85% efficiency or higher and very stable voltage output. All cables are black and not ketchup and mustard colored.
ManufacturerARESGAME #ad
Height3.3 Inches
Length5.9 Inches
Weight3.13 Pounds
Width5.5 Inches
Part NumberAGV500
Warranty5 Years

9. Coolmax


Coolmax 240-Pin 400 Power Supply with 1x80 mm Low Noise Cooling Fan I-400

Coolmax #ad - Atx12v version 2. 0 Single +12V output design. Serial ata 150 ready. Total power: 400 w. 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. Cooling system: 1x 80mm Low Noise Cooling Fan. Input- 100 ~ 132v ac / 200 ~ 264V AC.
BrandCoolmax #ad
ManufacturerCoolmax #ad
Height5.6 Inches
Length5.9 Inches
Weight2 Pounds
Width3.3 Inches
Part NumberI-400