Power Supplies - Showing 2017 - 2040 of 17943 Products
Refurbished: 1Pcs for 750w power supply GW-BNF750w
- Model #: 792597985159
- Item #: 9SIVB8UKX57240
- Return Policy: Magicpower Return Policy
Refurbished: SPIII-2003-PB Computer Host Desktop Power Supply 200W
- Model #: 722954727146
- Item #: 9SIVSY0KUR7858
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: T3400 T410 Server Power Supply NPS-525AB A N525E-00 H525E-00 YN637 ...
- Model #: 722954987847
- Item #: 9SIVB8UKAA6467
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP300-60GSV FSP300-60LC FSP300-60PF FSP300-60PLA Industrial ...
- Model #: 716837087922
- Item #: 9SIVB8UKX59628
- Return Policy: Magicpower Return Policy
Refurbished: For LCC600-12U-9401-A1 High Power Switching Power Supply 600W
- Model #: 752804576327
- Item #: 9SIVRWKKXB2113
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For 789376-001 798099-B21 D48S2650A HSTNS-PD55
- Model #: 792597704064
- Item #: 9SIVRWKKXD2429
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for PE2950 750W Server Power Supply Z750P-00 7001072-Y000 NY526 ...
- Model #: 792597705122
- Item #: 9SIVRWKKXD2646
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for RD650RD450RD350X PS-2551-6L-LF DPS-550AB-5 A Server Power ...
- Model #: 792597706655
- Item #: 9SIVRWKKXD3467
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU 220W Power Supply R1U-2220V R1U2-5220V4H
- Model #: 726099221323
- Item #: 9SIVB8UKCN1236
- Return Policy: Magicpower Return Policy
Refurbished: For 078-000-192-00 078-000-155 XT380/480/680
- Model #: 726727821369
- Item #: 9SIVRWKKXB1566
- Return Policy: Nytke team Return Policy
Refurbished: X3550M4 X3650M4 X3630M4 550W Power Supply 43X3312 94Y8112 94Y8105
- Model #: 722954733796
- Item #: 9SIVB8UKAA5955
- Return Policy: Magicpower Return Policy
Refurbished: G8 460W Server Power Supply Titanium 739252-B21 746071-001 ...
- Model #: 722954735769
- Item #: 9SIVB8UKAA6196
- Return Policy: Magicpower Return Policy
Refurbished: 24V2.5A 60W LED Power Supply H60W-SD-24
- Model #: 753525941807
- Item #: 9SIVSYTKUV2013
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: B425 Aircross 510S FSP500-20TGBAB HK280-72PP Desktop 10 Pin Power ...
- Model #: 722954729287
- Item #: 9SIVB8UKAA5495
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3000W Power Supply DPS-3000AB-24 B DPS-3000AB-24B
- Model #: 726099222443
- Item #: 9SIVB8UKCU6235
- Return Policy: Magicpower Return Policy
Refurbished: LDA30F-12 Power Supply 12V 2.5A 50-60Hz AC100-240V 0.8A Original ...
- Model #: 753525933833
- Item #: 9SIVRTNKX42914
- Return Policy: Jiamayanonly Return Policy
Refurbished: S7506E-S S7503E 1400W Switching Power Supply PSR1400-A LSQM1AC1400
- Model #: 753525941890
- Item #: 9SIVB8UKAA5035
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 320W Power Supply PA-2321-1H
- Model #: 759950245572
- Item #: 9SIVB8UKDA9312
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for E450D650 power supply FSP180-10TGBAA PA-1181-10AC B ...
- Model #: 716837097129
- Item #: 9SIVB8UKX62948
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for YM-6621B 620W server module power supply
- Model #: 792597985913
- Item #: 9SIVB8UKX57403
- Return Policy: Magicpower Return Policy
Refurbished: Industrial Computer Power Supply ACE-A225A 1U 250W ATX
- Model #: 722954731983
- Item #: 9SIVB8UKAA5825
- Return Policy: Magicpower Return Policy
Refurbished: DS-8664N-I8 8608 8616 8632 64 32 Way 8-Bay Monitoring Main Video ...
- Model #: 722954728891
- Item #: 9SIVB8UKAA5481
- Return Policy: Magicpower Return Policy
Refurbished: For MW SD-1000H-48 Single Group Output Converter Power Supply
- Model #: 753525987324
- Item #: 9SIVB8UKAA8764
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R310 350W Switching Power Supply L350E-S0 D350E-S0 ...
- Model #: 744623310800
- Item #: 9SIVB8UKD12090
- 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.
