Power Supplies - Showing 2065 - 2088 of 17945 Products

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Refurbished: For MRT-6320P-R Industrial Server Power Module 320W
$259 .00
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Refurbished: For N2200-PAC-400W-B power supply
$132 .00
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Refurbished: KHACHIMO FSP 80plus Silver AIO FLEX Small 1U K39 500W Switching Power ...
$249 .00
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Refurbished: PSU For SEVENTEAM 750W Power Supply ST-750P-AF
$549 .00
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Refurbished: 1Pcs for V7000 G2 Storage Power Supply 31P1848 TDPS-1200BB A 00RY003 ...
$970 .00
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Refurbished: For FSP1300-20FM server power supply 1300W 9PA13A0300
$235 .00
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Refurbished: UCS C200 CPB09-031A Server Power Supply R2X0-PSU2-650W-SB
$139 .00
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Refurbished: PSU For IBM HS-1235E 850W Power Supply HS-PSU-850-AC-INT DS850-3-002 ...
$214 .00
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Refurbished: KHACHIMO BTX 2010 2020 2030 6800 6000 4800 8000 250W Power Supply ...
$69 .00
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Refurbished: YM-2821A 820W Original For Server Redundant Power Supply Module
$199 .00
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Refurbished: For FSP400-70PFL FSP350-60PLN FSP400-60THA-P GSM-7450P Power Supply
$259 .00
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Refurbished: 1pcs for DS460S-3 DS460SDC-3 PWR-460DC-R PWR-500DC-F AC/DC Power ...
$194 .00
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Refurbished: KHACHIMO SFX MATX 350W Switching Power Supply SS-350SFE
$179 .00
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Refurbished: 1pcs for CT Power Supply VI-LU3-EWW-01 VE-PU03-EWW-01 VI-LU4-EW-01
$1,765 .00
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$1,765 .00
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Refurbished: 1Pcs for M470 Power Supply D700A0 S26113-E536-V70-01
$789 .00
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Refurbished: 1PCS for G9 1400W Power Supply 720620-B21 733427-001 754383-001 ...
$73 .00
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Refurbished: 1pcs for X5726A DCJ9133-01 114-00148 + C0 913W Switching Power Supply
$298 .00
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Refurbished: KHACHIMO 24V Power Supply 6GK5008-0BA10-1AB2
$379 .00
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Refurbished: 1PCS for PS-5401-1HA PCE009 796346-001 796416-001 Z240 Workstation ...
$103 .00
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Refurbished: MSA2000 YM-2751B CP-1391R2 481320-001 712.8W
$99 .00
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Refurbished: 1Pcs for JPSU-1600W-AC-AFO 740-054405 QFX10002 Power Supply 1600W
$330 .00
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Refurbished: For PWS-2K04A-1R Server Power Supply 2000W
$132 .00
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Refurbished: For M1L2-5650P3V 650W 1+1 Rredundant 2U Power Module
$339 .00
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Refurbished: KHACHIMO G8 1200W Switching Power Supply HSTNS-PL30 643933-001 ...
$159 .00
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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.