Best 400 Watt Power Supply

PSU Tier List

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Bestseller No. 1
Coolmax I-400 400W ATX 12V V2.0 Power Supply (not Compatible with PCI-E)
  • ATX12V version 2.0
  • Single +12V output design
  • Serial ATA 150 ready
  • Total Power: 400 W. Input- 100 ~ 132V AC / 200 ~ 264V AC
  • 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
SaleBestseller No. 2
EVGA 100-N1-0400-L1 , 400 N1, 400W, 2 Year Warranty, Power Supply 100-N1-0400-L1
  • EVGA 400W N1 series
  • Fan Size/Bearing: 120 millimeter sleeve bearing - Quiet and intelligent auto fan for near-silent operation
  • Heavy-duty protections including OVP, OPP, and SCP
  • 2 year & EVGA's 24/7 technical support
SaleBestseller No. 3
APEVIA SFX-AP400W Mini ITX Solution / Micro ATX / SFX 400W Power Supply
  • 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, 1 x 4pin 12V(P4), 1 x 6/8pin PCIe, 2 x SATA, 2 x 4pin Molex, 1 x 4pin Floppy
  • Output: +3.3V@12A, +5V@12A, +12V@28A, [email protected], [email protected]
  • Dimension: 125mm x 100mm x 63.5mm (4.92" x 3.94" x 2.5") - L x W x H
Bestseller No. 4
LLTOP 48v DC Power Supply 400w 8.33A Waterproof AC110v/120v to 48vdc Converter Constant Voltage Outdoor Transformer for Pump Humidifier LED Lights
  • [Low Voltage Transformer]: Input: AC90-130V 50/60Hz, Output: DC48v, 8.33A 400w, 3.3 feet input cord with US standard 3-prong plug
  • [Multiple Safety Protection]: Automatic circuit safety protection design for short circuit, overload, over voltage, over current, over temperature
  • [Waterproof and Ultra Slim]:100% waterproof IP67, size of 9.76x3.9x1.6 inches suitable for multi scene
  • [Wide Range of Applications]: Converts 110VAC or 120VAC to 48V DC, widely used for constant low voltage products, like 48vdc led lights, pump, electrical machinery, equipment cabinet, nebulizer, humidifier, etc.
  • [Durable Material]: Aluminum alloy case with this power supply is easier to dissipate heat, The inside of the Power Supply is filled with waterproof silicone, making it 100% waterproof and dustproof, while protecting the internal electronic components from being crushed by external forces.
Bestseller No. 5
400W IP67 Waterproof LED Driver, AC 90-140V to DC 12V Power Supply, 33.3A Low Voltage Transformer Adapter with 3-Prong Plug 3.28ft Cable for LED Lights, Computer Project, Outdoor Use
  • 【Feature】The Model of 12V LED Power Supply: 90-140V AC 50/60HZ; Output: 12V DC 33.3A 400W.
  • 【Waterproof】Our IP67 12V Power Supply is protective for outdoor use. You don't need to worry about the power supply getting splashed and not working.
  • 【Security】Automatic protection for short circuit / overload / over voltage / over current / over temperature.
  • 【Widely Application】This led driver is suitable for the LED Light , LED Strip Lights, Street Light, Surveillance Cameras, Fog-proof Light, Ceiling Lights, Frack Lights, Spotlight, Billboard, Monitoring Camera, Motor and Computer Projector, kitchen Cabinet lights and LED Landscape Transformer, etc.
  • 【Stable & Reliable】Our LED Power Supply Transformer with aluminum metal housing, easy for heat dissipation and ensure stability. High quality with 1 year warranty.
Bestseller No. 6
Raidmax XT Series 400W550W Power Supply - ATX 12V, PCI Express, SATA, Efficient PC Internal Power (400W)
  • High Power Output: Provides 400/550W of power, ensuring reliable and consistent performance for your PC.
  • Efficient Cooling: Utilizes an air cooling method to maintain optimal operating temperatures for your system.
  • Versatile Connectors: Features ATX 12V, 20+4 Pin, Floppy, PCI Express, and SATA connectors for compatibility with a wide range of components.
  • ATX 12V Compliance: Meets ATX 12V V2.3 standards, ensuring compatibility with modern systems.
Bestseller No. 7
90W 65W Power Supply for HP ProDesk 600 400 G1 G2 G3 G4 G5 G6 Mini Desktop SFF PC,HP EliteDesk 800 Mini,HP Omni 120 100 All in One,HP Slimline 260 400 260-A010 260-A114 Power Cord AC Adapter Charger
  • 【Specification】 Output:90W 19V 4.74A(Also Compatible with 65W 19.5V 3.33A) / Input:AC 100-240V, 50-60Hz
  • 【Compatible HP ProDesk Mini Model】This Power Supply fit for HP ProDesk Mini PC Desktop : ProDesk 600 G1 G2 G3 G4 G5 G6 Mini, ProDesk 400 G1 G2 G3 G4 G5 G6 Mini Desktop Computer AC Adapter Replacement
  • 【Compatible HP EliteDesk Mini Model】 This Laptop Charger fit for HP EliteDesk Mini Business PC : HP EliteDesk 800 G1 G2 G3 G4 G5 G6 Mini, HP EliteDesk 705 G1 G2 G3 G4 G5 Mini Desktop Charger Replacement
  • 【Compatible HP Omni AIO Model】This AC Adapter fit for HP Omni All in One 100 120 Series 100-5158 100-5151 100-5154 100-5155 100-5157 100-5200z 120-1024 120 -1134 120-1100 120-1034 120-1130 la 120-1333w 120-1123w 120-1124 120-1125 120-1135 120-1026 Power Cord Replacement
  • 【Compatible HP Slimline Model】This AC Adapter fit for Slimline Desktop 400 260 Series 260-A010 260-A020 260-A011 260-A114 260-A129 260-A059W 270-A010 290-A0046 400-314 400-414 400-334 Power Supply Replacement
Bestseller No. 8
JOYLIT 24V Power Supply 400W CE, 100-130V AC Convert to DC 24 Volt LED Driver 16.7A Max, Ultra Thin Fanless LED Transformer for LED Tape, 3D Printer, CCTV (24V 400W)
  • [ Parameter ]: INPUT: 100-130V AC 50/60Hz, Constant voltage DC output: DC 24V, Output Current: 16.7A Max, Maximum Power: 400W, 2 Channel DC Output,Size: 23.7X4.8X2.5CM
  • [ Safer to Use ]: CE Approved reliable low voltage transformer with over-voltage, over-current, over-load, short-circuit protections, ensure stable and safe operation and longevity the lifespan of the power supply.
  • [ Fast Wiring Terminal ]: No tools required, just insert the cables into the terminal, subvert the traditional wiring. Fast and Stable.
  • [ Dimmable Function ]: 4 level dimmable to adjust brightness in different level of 25%, 50%, 75%, 100%. Only 75% and 100% level suitable for COB LED Strip & High output LED Strip, because they need at least 20V voltage to drive it, below 20V lights will not work.
  • [ Quite Runing ] : Fan-less design, no noise and no flicker. Adopts durable aluminum housing and honeycomb style, filled with glue, scientifically designed for heat dissipation and helps the electronic components run cool.
Bestseller No. 10
2pcs, JOVNO 12V 1A Power Supply, 100-240V AC to DC 12volt 1amp 12W Adapter 700mA 500mA 400mA Power Cord with 5.5x2.5mm Tip for LED Light Strips, Security Camera System, CCTV, Routers, Speakers, Fans
  • 【Power Specs】 Input: AC 100V-240V 50/60Hz; Output: DC 12V, 1A 12W MAX; DC plug size is 5.5mm x 2.5mm. Compatible with 5.5mmx2.1mm. Polarity is inside positive "+", outside negative"-".
  • 【Wide Application】 Widely used to drive 2835 5050 WS2811 12V LED strip lights, video surveillance system, DVR NVR CCTV security camera system, Arduino projects, keyboard pianos, portable speaker, wireless microphones, desktop switches, , pumps, LED signs, garage door opene, IR lamps, Christmas displays, led lighting under cabinets, diy lamp, wireless router, water purifier, DC motor and other 12V devices less than 12W.
  • 【High Quality & Safty】 The products adopt the industry's top materials and processes, flame retardant shell resistant to high temperature of 1382℉, premium-quality components and safe&reliable power cord. Certified by FCC, CE, RoHS, CCC, Overcurrent protection, overvoltage protection and overload protection, short-circuit protection ensure the stability and smoothness. Gives a safe charging.
  • 【User-friendly Design】 We especially give away a female DC connector, so you can screw wires onto it easily to meet more application scenarios. Integrated design of power supply and plug makes it more compact and light.
  • 【Support & Reassurance】 Buy with confidence and 24-hours online service, 45 days money back guarantee and 12 months warranty, lifetime technical support. Please feel free to contact with us for any questions, we will do our best to serve.

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