Top 10 400w ATX Power Supply – Computer Power Supplies

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1. Apevia

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

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Apevia #ad - Dimension: 125mm x 100mm x 63. 5mm 4. 92" x 3. 94" x 2. 5" - l x w x H. Cooling: 1 x 80mm automatically Thermal Sensing Fan. Output: +3. [email protected], [email protected], [email protected], [email protected]3a, [email protected] 5a. Connectors: 1 x 20+4pin main power, 2 x 4pin molex, 2 x sata, 1 x 4pin 12vP4, 1 x 6/8pin PCIe, 1 x 4pin Floppy. All cables are Sleeved. Apevia sfx-ap400w mini itx solution / micro atx / SFX 400W Power Supply.
BrandApevia #ad
ManufacturerApevia #ad
Height2.5 Inches
Length5 Inches
Weight2.1 Pounds
Width4 Inches
Part NumberSFX-AP400W 
ModelSFX-AP400W 
Warranty1 Year

2. Dynex

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Dynex DX-400WPS 400 Watt ATX PCIe SATA PC Power Supply

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Dynex #ad - 1 pci-express 2 x 3 power connector. Atx12v v2. 2 compatibility. Supports intel and AMD Multi-Core CPU's.
BrandDynex #ad
ManufacturerDynex #ad
Height3.39 Inches
Length5.91 Inches
Weight2.5 Pounds
Width5.51 Inches
Part NumberDX-400WPS
ModelDX-400WPS

3. Thermaltake

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

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Thermaltake #ad - Industry grade protections: opp over power Protection, OVP Over Voltage Protection, SCP Short Circuit Protection. Delivers 430w continuous output at +40℃. Active pfc power factor correction, MTBF: 100, 000 hours. 80 plus certified: 80% efficiency under typical load. Compliance with Intel ATX 12V 2. 31 & eps 12v 2. 92 standards. 5 year warranty. Supports 2 pci-e 6+2pin connectors.
BrandThermaltake #ad
ManufacturerThermaltake #ad
Height7.25 Inches
Length9 Inches
Weight3.3 Pounds
Width4 Inches
Part NumberPS-SPD-0430NPCWUS-W
ModelPS-SPD-0430NPCWUS-W
WarrantyPS-SPD-0430NPCWUS-W

4. Replace Power®

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420W Watt ATX Power Supply Replacement for Dell Dimension B110, 4400, 2400, 2200, 2300, 1100, 2450, 4300, 3000, 2350

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Replace Power® #ad - Reduced depth for increased compatibility; 5. 9" height x 3. 4" weidth x 4" Depth. 110-260v ac switchable Power Supply. Replaces several older Legacy Power Supply; Upgrade to 420 Watts. Built-in 20+4 pin adapter: supports 24 and 20 Pin Power Supplies. Over current and over power Protection; Over Voltage and Short Circuit Protection.
BrandReplace Power® #ad
ManufacturerReplace Power® #ad
Height3.9 Inches
Length6.4 Inches
Weight1.5 Pounds
Width6.2 Inches
Part NumberRPSU-b110-300
ModelNA

5. Replace Power®

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HP-D3057F3R, Replace Power 420W 420 Watt ATX Power Supply Replacement for HP Compaq HIPRO HP-D2537F3R

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Replace Power® #ad - Reduced depth for increased compatibility; 5. 9" height x 3. 4" weidth x 4" Depth. 110-260v ac switchable Power Supply. Replaces several older Legacy Power Supply; Upgrade to 420 Watts. Built-in 20+4 pin adapter: supports 24 and 20 Pin Power Supplies. Over current and over power Protection; Over Voltage and Short Circuit Protection.
BrandReplace Power® #ad
ManufacturerReplace Power #ad
Height3.9 Inches
Length6.4 Inches
Weight1.5 Pounds
Width6.3 Inches
Part NumberRPSU-D2537F3R
Model6864698

6. Thermaltake

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Thermaltake TR2 430W ATX 12 V2.3 Power Supply W0070RU-04

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Thermaltake #ad - Noise: 19db at 2000RPM. Cooling system: dual 80x80x20mm fan, 2400 rpm+/-10%, temp. Maximum power: 430 Watts. Auto control - 3010rpm at 25¡ãc ~ 3070rpm at 40¡ãC. Switch: atx logic on-off additional power rocker switch 115/230 V selector switch. Connector: 1x 20+4pin Main Connector.
BrandThermaltake #ad
ManufacturerThermaltake #ad
Height5.9 Inches
Length6.3 Inches
Weight2.19 Pounds
Width3.3 Inches
Part NumberTR2-430W
ModelTR2-430W
Warranty3 YEARS

7. Rosewill

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

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Rosewill #ad - Pc case + power supply: excellent mini tower computer case with 400W power supply psu delivers the best solution for your computer system. Stylish aluminym look: this mini tower has an aluminym-look front panel.

Excellent airflow: with 1 x 90mm rear computer case fan, ROSEWILL R379-M offers the optimized ventilation to our users for long time operation. With solid and cool front panel, R379-M gives you a better option of your office desktop. 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. 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.
BrandRosewill #ad
ManufacturerRosewill Direct #ad
Height14.25 Inches
Length17.2 Inches
Weight11.95 Pounds
Width7 Inches
Part NumberR521-M
ModelR521-M
Warranty1 year

8. Apevia

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

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Apevia #ad - Short-circuit/over-current/Over-Voltage/Over-Power/Under-Voltage/Over-Temperature Protections. 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.115/230v switch. Apevia venus 450w ATX Power Supply. 5% tolerance of 5v, 3. 3v & 12v output.
BrandApevia #ad
ManufacturerApevia Corp #ad
Height3.4 Inches
Length5.9 Inches
Width5.5 Inches
Part NumberVENUS450W
ModelVENUS450W

9. Coolmax

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

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

10. EVGA

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

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EVGA #ad - 80 plus white certified, with 80 percentage efficiency or higher under typical loads. Compatibility of the evga 500 w1, 80 white 500 w, power supply 100 W1 0500 KR 100 W1 0500 KR. Heavy duty protections, opp over power protection, including ovp over voltage protection; UVP Under voltage protection, OCP Over current protection, and SCP Short circuit protection. Evga 500 watt; Unbeatable value. 3 year warranty.
BrandEVGA #ad
ManufacturerEVGA #ad
Height3.35 Inches
Length5.51 Inches
Weight4 Pounds
Width5.91 Inches
Part Number4250812401779
Model100-W1-0500-K3
Warranty3 year