Power Supplies - Showing 2113 - 2136 of 17942 Products
Refurbished: 550W Power Supply M1Z-5550V
- Model #: 753525943009
- Item #: 9SIVB8UKAA5263
- Return Policy: Magicpower Return Policy
Refurbished: For PSR380-24A GPR380-24A H3C Switch Power Supply
- Model #: 722954730689
- Item #: 9SIVSY0KUU3224
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for P1S-2300V-R server power supply 300W
- Model #: 792597728213
- Item #: 9SIVB8UKX32940
- Return Policy: Magicpower Return Policy
Refurbished: RPS1600-A Switching Power Supply AD162M56-1M1
- Model #: 753525944129
- Item #: 9SIVB8UKAA5357
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 6200-XGSF SFP+ 6224 6224P 6248 6248P
- Model #: 792597984978
- Item #: 9SIVB8UKX57168
- Return Policy: Magicpower Return Policy
Refurbished: For 2720 AIO Power Supply XPS One 2710 235W PSU L235EA-00 53WG5
- Model #: 726727732726
- Item #: 9SIVRWKKXA3665
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Flex POS Small 1U 150W Switching Power Supply ST-150FUB ...
- Model #: 744623306018
- Item #: 9SIVB8UKD01957
- Return Policy: Magicpower Return Policy
Refurbished: For FSP500-70PFL (SK) FSP500-60EPN (80) FSP600-60EPN (80) Power Supply
- Model #: 726727818239
- Item #: 9SIVRWKKXB1293
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO XPS 410 420 430 9200 E520 425W Switching Power Supply ...
- Model #: 744623306179
- Item #: 9SIVB8UKD01979
- Return Policy: Magicpower Return Policy
Refurbished: PowerEdge R310 Power Supply R109K D350E-S0
- Model #: 722954725418
- Item #: 9SIVB8UKAA7189
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply TOUCH 350W Power Supply HK352-11UEP
- Model #: 703454715246
- Item #: 9SIVB8UKAJ5907
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply NPS42-M 100-24VAC
- Model #: 753525990324
- Item #: 9SIVB8UKAA7813
- Return Policy: Magicpower Return Policy
Refurbished: For 6SL3203-0CD21-4AA0 4kw A5E00417563
- Model #: 726727722550
- Item #: 9SIVRWKKXA2202
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for T420 096R8Y 02G4WR F550E-S0 DH550E-S1 DPS-550PB A power ...
- Model #: 792597710355
- Item #: 9SIVRWKKXD4272
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for P1S-2400V-R(400W)
- Model #: 716837090649
- Item #: 9SIVB8UKX60842
- Return Policy: Magicpower Return Policy
Refurbished: For X3650 M4 server power supply 900W 94Y8118 94Y8117 7001606-J002
- Model #: 726727816280
- Item #: 9SIVRWKKXB0658
- Return Policy: Nytke team Return Policy
Refurbished: NF290D2/NF5220 Server Power Supply EFRP-553V3 550W
- Model #: 722954729652
- Item #: 9SIVB8UKAA5543
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FSP 80plus Bronze Industrial Computer Power Supply 350W ...
- Model #: 744623303918
- Item #: 9SIVB8UKCW6178
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for D20 Workstation Power Supply DPS-1060AB 1060W 41A9762 ...
- Model #: 792597985982
- Item #: 9SIVB8UKX57382
- Return Policy: Magicpower Return Policy
Refurbished: S7700 S9700 2200W Switching Power Supply W2PSA2230
- Model #: 753525941609
- Item #: 9SIVB8UKAA5018
- Return Policy: Magicpower Return Policy
Refurbished: MP4-1E-1L-1N-1N-4LF-00 600W
- Model #: 753525986914
- Item #: 9SIVB8UKAA8699
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for TS430 TS530 GPS-400CB B A 400W ATX Power Supply REV36002256
- Model #: 716837092490
- Item #: 9SIVB8UKX61394
- Return Policy: Magicpower Return Policy
Refurbished: 3PAR 7200 7400 764W Power Supply 727386-001 726237-001
- Model #: 722954987311
- Item #: 9SIVB8UKAA6459
- Return Policy: Magicpower Return Policy
Refurbished: For FAST200 Controller 19K1115 IBM Fast200
- Model #: 726727728439
- Item #: 9SIVRWKKXA2689
- Return Policy: Nytke team 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.
