Power Supplies - Showing 1993 - 2016 of 17946 Products
Refurbished: For DPSN-196AB B server power supply RPSN-196 202W
- Model #: 726727734140
- Item #: 9SIVRWKKXA4024
- Return Policy: Nytke team Return Policy
Refurbished: 700W Switching Power Supply PWS-702A-1R
- Model #: 722954737893
- Item #: 9SIVSYTKUT6301
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: For RH2285 Server Power Backplane DD-3151-2F-LF
- Model #: 726727820492
- Item #: 9SIVRWKKXB1531
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R4875G1 48V75A communication power supply
- Model #: 792597722082
- Item #: 9SIVRWKKXD8316
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power Module R48-3000A3 3000W
- Model #: 724780183585
- Item #: 9SIVT8HKWF3075
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO RG-S6120 S6510 550W Switching Power Supply GW-CRPS550N2C ...
- Model #: 744623302607
- Item #: 9SIVB8UKCV8278
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply For SNP-9549-MV 100-240VAC SNP-9549
- Model #: 753525990294
- Item #: 9SIVB8UKAA7847
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for P2H-5500V P2H-5400V P2F-5400V P2F-5500V Industrial Power ...
- Model #: 792597709458
- Item #: 9SIVRWKKXD4013
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for YM-3571A 575W Power Supply CP-1401R2 FRUKE05-01
- Model #: 792597708628
- Item #: 9SIVRWKKXD3832
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DL320E G8 DPS-250AB-95 A 803700-101 809669-001 Server Power ...
- Model #: 792597724352
- Item #: 9SIVRWKKXD9057
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs For RMG-4514-00 Server Power Supply 450W
- Model #: 726099253355
- Item #: 9SIVRWKKXD1861
- Return Policy: Nytke team Return Policy
Refurbished: 12V13A 156W Switching Power Supply TN09-0156-01 460-112+0158
- Model #: 753525934946
- Item #: 9SIVB8UKA99324
- Return Policy: Magicpower Return Policy
Refurbished: For 02130985 X6000 RH2485V2 RH5885V3 1200W power supply PS-2222-3H
- Model #: 726727820874
- Item #: 9SIVRWKKXB1498
- Return Policy: Nytke team Return Policy
Refurbished: DPS-180UB A 200W Server 1U MINI ATX Power Supply
- Model #: 722954733253
- Item #: 9SIVB8UKAA5890
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 700W Switching Power Supply ATX-0670GA2
- Model #: 744623304601
- Item #: 9SIVB8UKCW6218
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For EVOC ATX 810 820 250W Switching Power Supply PS-7270F ...
- Model #: 744623301211
- Item #: 9SIVB8UKCV8109
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO BTX 2010 2020 2030 6800 6000 4800 8000 250W Power Supply ...
- Model #: 744623301938
- Item #: 9SIVB8UKCV8200
- Return Policy: Magicpower Return Policy
Refurbished: For 48v 15ah Power Supply For MER048-15010-R0
- Model #: 753525988604
- Item #: 9SIVB8UKAA7666
- Return Policy: Magicpower Return Policy
Refurbished: For NEPS2000-A5 Power Supply NEPS2000-A For LSBM3Power S8512 S850
- Model #: 722954733536
- Item #: 9SIVB8UKAA5950
- Return Policy: Magicpower Return Policy
Refurbished: 071-000-460 7000958-Y000 CX3-80 1200W HJ75
- Model #: 753525987003
- Item #: 9SIVB8UKAA8686
- Return Policy: Magicpower Return Policy
Refurbished: RX6600 RX3600 RX4640 0957-2198 RH1448Y
- Model #: 753525957259
- Item #: 9SIVB8UKAA8944
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 130W Switching Power Supply GW-D19-130
- Model #: 744623304588
- Item #: 9SIVB8UKCW6209
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for A1289 980W Power Supply FS8001 614-0435 614-0454 DPS-980BB
- Model #: 716837082859
- Item #: 9SIVB8UKX57495
- Return Policy: Magicpower Return Policy
Refurbished: C521 Power Supply NH429 MH596 D233N
- Model #: 722954730641
- Item #: 9SIVB8UKAA5641
- Return Policy: Magicpower Return Policy
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.
