Finding the best power supply 400w suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. EVGA 450 BT, 80+ Bronze 450W, 3 Year Warranty, Power Supply 100-BT-0450-K1
Feature
EVGA 450 BT - "Great Quality, Great Value"80 PLUS Bronze certified, with 85% efficiency or higher under typical loads
Fan Size / Bearing: 120mm Sleeve Bearing. Quiet and Intelligent Auto Fan for near-silent operation
3 Year Warranty and unparalleled EVGA Customer Support
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)
Description
EVGA 450 BT - "Great Quality, Great Value"-
80 PLUS Bronze certified, with 85% efficiency or higher under typical loads
-
Fan Size / Bearing: 120mm Sleeve Bearing
-
3 Year Warranty and unparalleled EVGA Customer Support
-
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)
2. EVGA 400 N1, 400W, 2 Year Warranty, Power Supply 100-N1-0400-L1
Feature
2 Year Warranty. For a LIMITED TIME, +2 extra years with registration. (Valid from 6/5/2018 - 12/31/2018)EVGA 400W N1 Series
Fan Size / Bearing: 120mm Sleeve Bearing - Quiet and Intelligent Auto Fan for near-silent operation
Heavy-duty protections including OVP, OPP, and SCP
Description
When building on a budget, the EVGA 400W power supply is a great choice at a low cost. Supporting 30A on a single +12V rail provides more options without having to reduce your component requirements. The EVGA 400Woffers the connections and protections needed for basic system builds. With a standard 2 year warranty and ultra quiet fan design the EVGA 400W power supply will be a great asset for your next build on a budget.3. Computer Power supply ( internal ) - ATX - AC 115/230 V - 300 Watt - 9 output connector(s)
Feature
Replace or upgrade to a 300W Power Supply for a standard ATX computer300w ATX Power Supply
300 Watt ATX Power Supply
300w ATX PSU
ATX Power (20 pin; v 1.x) Male, 1
High performance components and connectors are designed for extra long life and provide maximum system performance
Long-life transformer and built-in short-circuit protection
See Applications page for detailed list of supported
The temperature controlled smart fan cools your entire system while the EMI/RFI power filter reduces noise/ripple
Provides a maximum output power of 300 watts
High-Flow fan provides efficient cooling for the system and power supply
High quality connectors provide minimal resistance and enhanced electric conductivity
Premium EMI/RFI power filtration system provides low noise/ripple for super clean and stable power to all system components
Description
A reliable upgrade or replacement power supply for desktop PCs. This StarTech.com power supply offers an upgrade or replacement to a variety of Intel or AMD-based ATX desktop computer systems. Compliant with the industry standard ATX specification and using the standard ATX form-factor, this power supply (PSU) can be used as a replacement in a variety of popular OEM desktop systems. Conforming to ATX revision 2.03, this power supply features a 20-pin ATX power connector and 6-pin AUX power connector, for support for older, legacy computer systems, as well as some newer, low powered systems with it's ATX12V connector. High quality components and a built in 80mm cooling fan lend to a durable and reliable power supply, while being backed by StarTech.com's 2 year warranty and free lifetime technical support.4. CORSAIR VS Series, VS400, 400 Watt, Active PFC Power Supply, 80+ White Certified
Feature
Active PFC with full range AC input (100-240 VAC)120mm thermally controlled sleeve bearing fan
Engineered to meet maximum power output at a 40C temperature rating.
Compatible with the latest ATX12V v2.31 and EPS 2.92 standards and is backward compatible with ATX12V 2.2 and older systems.
Over-voltage protection, under-voltage protection, short circuit protection, over power protection, and over temperature protection provide maximum safety to your critical system components.
Safety and Agency Approvals: FCC, cTUVs, TUV, CE, TUV-S, WEEE and RoHS (Due to limited certifications, this product may not be sold in certain regions)
Description
The vs Series competes well in emerging markets and offers a High quality name with 80 plus efficiency at affordable pricing. The vs Series offers many upgrades from traditional designs. It is Black with Black cable sleeving and Black connectors, offers a large Diameter, thermally controller fan, and is nearly silent when running at idle.5. PC Power & Cooling Silencer Series 400 Watt (400W) 80+ Bronze Semi-Modular Active PFC Industrial Grade ATX PC Power Supply 3 Year Warranty PPCMK3S400
Feature
Semi-Modular80Plus Bronze
Single 12V Rail
Description
FirePower Silencer MK III 400W 80Plus Bronze Sem-Modular Power Supply PPCMK3S4006. Coolmax 240-Pin 400 Power Supply with 1x80 mm Low Noise Cooling Fan (I-400)
Feature
ATX12V version 2.0Single +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
Description
Coolmax I-400 400W ATX 12V V2.0 Power Supply with 1x80 mm Low Noise Cooling Fan7. APEVIA ATX-VS450W Venus 450W ATX Power Supply with Auto-Thermally Controlled 120mm Fan, 115/230V Switch, All Protections
Feature
Apevia ATX-VS450W Venus 450W ATX Power SupplyConnectors:1 x 20/24pin Main Power, 1 x 4pin 12V, 2 x SATA, 4 x Peripheral, 1 x Floppy
1 x Auto-Thermally Controlled Black 120mm Fan. 115/230V Switch
5% Tolerance of 5V, 3.3V & 12V Output
Short-Circuit/Over-Current/Over-Voltage/Over-Power/Under-Voltage/Over-Temperature Protections
Description
Apevia ATX-VS450W Venus Series 450W Power Supply with 1 x 120mm Auto-Thermally Controlled Black Case Fans. 1 x 20 /24pin Main Power /1 x 12V(P4) / 2 x SATA/ 4 x Molex/ 1 x Floppy Connectors. 115/230V Switch, 5% Tolerance of 5V, 3.3V & 12V Output. Max. Output Current +3.3V(16A), +5V(16A), +12V(32A), -12V(0.3A), +5Vsb(2.5A), Circuit/Over-Current/Over-Voltage/Over-Power/Under-Voltage/Over-Temperature Protections. For safety, do not overload, abuse or modify the power supply unit. Use of this unit for Bitcoin Mining is not suggested since it will shorten the life and cause failures of power supply. Use for mining purposes is not covered by warranty.8. Thermaltake Smart 500W 80+ White Certified PSU, Continuous Power with 120mm cooling fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0500NPCWUS-W
Feature
Delivers 500W Continuous output @ +40. Compliance with Intel ATX 12V 2.31 & EPS 12V 2.92 standards80 PLUS Certified - 80% efficiency under typical load
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
High-Quality Components
Equipped with a powerful +12V rail, superior performance under all types of system loading
5 Year Warranty
Description
Incorporating various high-quality components, the Smart Series - models are rated from 500W to 700W - saves energy through its high efficiency of up to 86% and accommodates any mainstream build with the most demanding requirements. An embedded intelligent cooling fan delivers excellent airflow at an exceptionally low noise level. Additionally, the Single +12V rail design enables non-stop usage with stable and reliable performance. Smart Series adopt 120mm cooling fan delivers excellent airflow at an exceptionally low noise level. Smart Series saves energy through its high energy efficiency of up to 86% and is 80 PLUS Standard Certified. High quality components enable non-stop usage with stable and reliable performance, no more capacitor explosion and leakage. Single +12V Output.
P/N: PS-SPD-0500NPCW-W
Short P/N: SPD-0500P
Model: SP-500AH2NKW
Type: Intel ATX 12V 2.3
Max. Output Capacity: 500W
Color: Black
Dimension (H x W x D): 86mm x 150mm x 140mm
PFC Power Factor Correction: Active PFC
Power Good Signal: 100-500 msec
Hold Up Time : 16msec (minimum) within 60% load
Input current: 8A max
Input Frequency Range: 50 Hz - 60 Hz
Input Voltage: 100Vac 240Vac
Operating Temperature: 5 to +40
Operating Humidity: 20% to 85%,non-condensing
Operating Temperature: -40 to +55
Operating Humidity: 10% to 95%, non-condensing
Cooling System: 120mm Fan: 1800 R.P.M. 10%
Efficiency: 82-86% efficiency @ 20-100% load
MTBF : 100,000 hrs minimum
Safety Approval: CE/CB/TUV/ UL/ FCC
PCI-E Connector: PCI-E 6+2pin x 2
9. Rosewill Stallion Series 400W ATX 12V v2.2 Power Supply ATX12V 400 Power Supply RD400-2-SB
Feature
Supports ATX12V v2.2 standardSupports both Intel and AMD Systems
Dual 12V rails provide independent reliable power
120mm Single Fan with Smart Temperature Sensor
20+4 pin main connector for universal motherboard compatibility
Mesh sleeving on all cables for easier cable routing and better ventilation
Built-in inrush current, over temperature/current/voltage protection circuits
Description
In today's power hungry world you need a PSU that can deliver and the Rosewill RD400-2-SB does. With 400W of total output power there's plenty of juice for the most demanding situations. Dual 12V rails with 27 amps of power provide plenty of independent, reliable power. As in all cases, being well connected is of major importance, and sprouting from the housing are a multitude of mesh wrapped cables to connect all your components. The mesh wrapping keeps things neat and helps to promote better airflow and cooling. Universal motherboard connectivity is ensured with the 20+4 main connector and 4/8 pin EPS connector. All these are enclosed in a flat black housing with multitudinous ventilation holes and a 120mm cooling fan. The smart temperature sensor intelligently adjusts the fan speed according to the system temperature for minimized operation noise.10. Antec Basiq BP350 350 Watt Power Supply
Feature
ATX12V Version 2.01 compliantDual +12V outputs provide maximum stable power for the CPU independently of the other peripherals
Built-in industrial-grade protection circuitry prevents damage resulting from short circuits, power overloads and over voltage
Backed by a 2-year parts and labor warranty
3.5" (H) x 5.8" (W) x 5.5" (D)