Power Supplies - Showing 529 - 552 of 11993 Products

Filter (0)
Super Flower Combat FG 1000W 80+ Gold, Full Modular, ATX 3.1 / PCIe 5.0, W/12V-2x6 Cable ...
$159 .99
Free Shipping
1800W 2000W ATX BTC Mining PC Power Supply For 8 GPU PSU Ethereum Bitcoin Miner Machine ...
$211 .19
Free Shipping
400W Desktop Computer Power Supply 400W TFX Power MAX 500W Power Supply PC TFX SFF ...
$132 .30
Free Shipping
MINI PSU FLEX Computer Power supply 1U 200W Small Desktop Computer Cash Register ...
$52 .78
Free Shipping
500W PC PSU Power Supply Black Gaming Quiet 120mm Fan 20/24pin 12V ATX PSU Computer ...
$66 .37
Free Shipping
1800W 2000W Modular Mining Power Supply PSU For 6 GPU ETH Rig Ethereum Miners
$237 .84
Free Shipping
TFX PSU 3010 7010 9010 250W Power Supply L250ED-00 DY72N 0DY72N CN-0DY72N 390 ...
$58 .37
Free Shipping
E98791-009 750W 80Plus Platinum Power Supply DPS-750XB A E98791-010 ...
$86 .99
Free Shipping
SAMA XP 850w ATX Power Supply PSU For Gaming Computer PC Power Supply Unit - 80 Plus ...
$114 .99
Free Shipping
1200W Miner Switching Power Supply for GPU Rig Mining BTC ETH Ethereum 1200W ...
$260 .91
Free Shipping
1800W PSU Power Supply For 8 GPU 1800W ATX Gaming Power Supply 80PLUS Gold Switching ...
$195 .06
Free Shipping
450Watt Power Supply FSP450-50ETN 54Y8899 P300 E31 Tower 450W Power Supply 54Y8860 ...
$79 .18
Free Shipping
SAMA GT650WH White 80 PLUS Gold Fully Modular ATX Power Supply - ATX 3.1 & PCIe 5.1 ...
Save: $5.00 (6%)
$79.99
$74 .99
Free Shipping
Save: $5.00 (6%)
$79.99
$74 .99
2000W Mining Power Supply 2000W PSU ETH Mining Rig Power Source GPU PSU with 10*PCI ...
$208 .01
Free Shipping
200W Psu Desktop 200W Power Supply For 790 990 7010 9010 USFF PSU L200EU-00 ...
$56 .75
Free Shipping
2000W 220V Switching Psu Power Supply For Asic Antminer Ethereum S9 S7 L3 Rig Mining ...
$214 .93
Free Shipping
APEVIA SFX-AP400W 400 W SFX Power Supply
$99 .99
1200W PC PSU Power Supply Unit 80Plus Black Gaming Quiet 140mm Rgb Fan 24Pin 12V ATX ...
$170 .39
Free Shipping
Miner Power Supply 1800W Rated Power Supply Bitcoin Miner PC Power Supply 95% High ...
$193 .40
Free Shipping
PSU For HP 400G3 Power Supply D13-180P1A D14-180P1A DPS-180AB-20 A PCB230 PCD009 ...
$63 .75
Free Shipping
Genuine PSU PS-3221-9AE 220W 220-240V-6/3.15A 50/60Hz Power Supply Well Tested For ...
$45 .41
Free Shipping
power supply 400W Computer PSU power supply flex power supply NAS case Small1U For ...
$74 .29
Free Shipping

Tips for Buying a Computer Power Supply Unit (PSU)

Introduction

A computer power supply is one of the most crucial components in a computer, as it is responsible for providing stable and regulated power for the system. If you are shopping for a computer power supply, finding the ideal one will require you to consider several important criteria. Those criteria include the size and form factor of the case, the wattage requirement of the system, efficiency, and your internal cabling preference.

Size Standards

Computer power supplies are available in a variety of different sizes and form factors. It is crucial that the power supply unit (PSU) you select matches the size requirements of your case and motherboard. If you have a Mini ITX case for example, you cannot utilize a standard ATX power supply. For more information about power supply form factors, see below.

  • ATX
    The standard power supply size that will fit most mid-size and full-size tower cases. Some micro ATX cases can utilize ATX power supplies as well.
  • Mini ITX
    Mini ITX power supplies are designed specifically for mini ITX systems but may also fit other small form factor computer cases.
  • SFX
    SFX computer power supplies are smaller than standard ATX PSUs and are meant for micro ATX and other small form factor computer cases.
  • TFX
    Another small form factor computer power supply that is thinner to fit micro ATX, Mini ITX, and other smaller systems.
Wattage

A computer power supply’s wattage rating is a measurement of how much power it can provide to the hardware. When shopping for a power supply, you need to consider how much power your computer system requires. To calculate your system’s power requirement, add up the power draw for all the components.

Start with the motherboard and processor, and then include graphics cards, system memory, storage devices, and other expansion cards. For an even better estimate, you should include USB devices, internal fans, and other accessories. Once you have your estimate, try to find a computer power supply that is capable of at least that. For a larger safety margin, you should get a PSU that is well above that minimum.

Cable Management

There are two cable management options for computer power supplies, modular and non-modular. Modular cabling allows you to connect and disconnect internal power cables from the power supply itself, so you can avoid having unused cables and connectors dangling inside the case. Computer power supplies that feature modular cabling typically cost more than those without it.

Efficiency

The efficiency of a computer power supply is a ratio of how much power it provides and how much power it draws. For instance, a power supply that provides 200 watts of power but pulls 400 watts from a power outlet has a 200/400 or 50% efficiency ratio. The more efficient your computer power supply is, the less it will cost you to operate.

One metric you can use to gauge efficiency is what level of 80 PLUS® certification a power supply has, if it any. The different levels of 80 PLUS certification include 80 PLUS, 80 PLUS Bronze, 80 PLUS Silver, 80 PLUS Gold, 80 PLUS Platinum, and 80 PLUS Platinum. The most basic certification is 80 PLUS, which indicates an efficiency rating of at least 80%. The other certifications rank from Bronze to Titanium, with the latter being the highest attainable. If computer power supply efficiency is a big concern for you, try to find one with a high level of 80 PLUS certification.