Power Supplies - Showing 2017 - 2040 of 17940 Products
Refurbished: For 3Y YM-2851V YH5851-XVAR 850W Server Power Supply YM-2851F
- Model #: 722954723018
- Item #: 9SIVB8UKAA6925
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply 24-pin GW-T200SHA 200W
- Model #: 716837090069
- Item #: 9SIVB8UKX60631
- Return Policy: Magicpower Return Policy
Refurbished: For YM-4151A host power supply 3Y HDX6000 7000 HDX8000
- Model #: 726099251481
- Item #: 9SIVRWKKXD1506
- Return Policy: Nytke team Return Policy
Refurbished: Aio OptiPlex 9010 9020 2330 200W Power Supply L200EA-01 0CJ4XJ
- Model #: 724780181420
- Item #: 9SIVB8UKA98800
- Return Policy: Magicpower Return Policy
Refurbished: For 500W computer power supply RTX4060
- Model #: 752804580126
- Item #: 9SIVRWKKXB2551
- Return Policy: Nytke team Return Policy
Refurbished: 12V0.85A -12V0.15A Power Supply DLN-8F51
- Model #: 703454715802
- Item #: 9SIVB8UKAJ5942
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for CA05954-3850 DX60 DX100 DX200 S4 BBU
- Model #: 792597708680
- Item #: 9SIVRWKKXD3957
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO AT P8P9 With Switch 400W Switching Power Supply PP-400V ...
- Model #: 744623317465
- Item #: 9SIVB8UKD64627
- Return Policy: Magicpower Return Policy
Refurbished: For Switched Power Supply U1A-A10550-DR 550W
- Model #: 722954731792
- Item #: 9SIVB8UKAA5756
- Return Policy: Magicpower Return Policy
Refurbished: W2PSA0 800 AC power module
- Model #: 703454723173
- Item #: 9SIVB8UKAJ6784
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For 43W4401 43W4404 46C9276 46C9274
- Model #: 716837095880
- Item #: 9SIVB8UKX62593
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80W Power Supply SRW-80-3003-24
- Model #: 759950246296
- Item #: 9SIVB8UKDA9356
- Return Policy: Magicpower Return Policy
Refurbished: For CA05967-1651 38037691 AC PSU DX100/200/500 S3 Power Supply
- Model #: 726727775914
- Item #: 9SIVRWKKXA5070
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 300-2017 7001395-Y000 1708W V890 Server Power Supply
- Model #: 716837098102
- Item #: 9SIVB8UKX63077
- Return Policy: Magicpower Return Policy
Refurbished: NP2500UAC-CR Communication Power Module
- Model #: 753525932850
- Item #: 9SIVT8HKWF3230
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: Dawn I620-G10 R1CA2551A Server Power Supply 550W APM12V0004
- Model #: 724780183059
- Item #: 9SIVB8UKA98962
- Return Policy: Magicpower Return Policy
Refurbished: For XP Power P4S3T19-FT4 Switching Power Supply
- Model #: 724780778378
- Item #: 9SIVB8UKAA6631
- Return Policy: Magicpower Return Policy
Refurbished: For FSP FSP150-50LN PPC-157T PPC-177T Power Supply
- Model #: 722954736605
- Item #: 9SIVB8UKAA6282
- Return Policy: Magicpower Return Policy
Refurbished: For Power Supply EFD-1K2S740DT EFD-1K2S560DT EFD-1K2S420DT ...
- Model #: 753525989762
- Item #: 9SIVB8UKAA7787
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for T5220 T5240 power supply SEDX9PS31Z 300- 2138-03
- Model #: 792597984473
- Item #: 9SIVB8UKX57070
- Return Policy: Magicpower Return Policy
Refurbished: Disassembly Switching Power Supply LEB225F-0524-R
- Model #: 753525956948
- Item #: 9SIVB8UKAA8918
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-750AB-30 B server, power supply 800W
- Model #: 792597725915
- Item #: 9SIVRWKKXD9474
- Return Policy: Nytke team Return Policy
Refurbished: FN5270 M4 M5 800W Power Supply FSG032
- Model #: 753525946666
- Item #: 9SIVB8UKA99760
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for SR550 SR590 SR650 SR630 750W Power Supply FSF055 01GV266 ...
- Model #: 716837097792
- Item #: 9SIVB8UKX62979
- 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.
