Power Supplies - Showing 1993 - 2016 of 17979 Products
Refurbished: KHACHIMO B325I 320 520 545 340 8Pin 250W Power Supply APB001 ...
- Model #: 744623299532
- Item #: 9SIVB8UKCU6649
- Return Policy: Magicpower Return Policy
Refurbished: FSP320-60LE Small 1u Cash Register Flex Mini Itx NAS Power 320W
- Model #: 722954727504
- Item #: 9SIVB8UKAA7386
- Return Policy: Magicpower Return Policy
Refurbished: For HG2-6300P For Advantech Industrial Computer Server Power Supply
- Model #: 722954732102
- Item #: 9SIVSY0KUS0322
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO TECH SFX 250W Power Supply SL-8250SFX
- Model #: 745635674928
- Item #: 9SIVB8UKDA0211
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 300W Switching Power Supply ACE-A630B ACE-A630B-RS-R10
- Model #: 744623302454
- Item #: 9SIVB8UKCV8256
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 380W Power Supply SP382-TS PWS-0050-M Work Like New
- Model #: 744623305240
- Item #: 9SIVB8UKD01847
- Return Policy: Magicpower Return Policy
Refurbished: for DPS-495CB-A PWR-00159-04 for Arista 7050qx/7060cx 495W
- Model #: 724780182465
- Item #: 9SIVB8UKA98921
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 400W Power Supply P1H-5407V P1H-6400P P1H-5400V
- Model #: 744623298474
- Item #: 9SIVB8UKCU6463
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP180-AHAM1 PWS-351-1H YKD-6650D YTL FSP075-RAAN2 ...
- Model #: 716837087175
- Item #: 9SIVB8UKX59367
- Return Policy: Magicpower Return Policy
Refurbished: SNP-Z309 24V12.5A 5V2A Industrial Power Supply
- Model #: 753525948851
- Item #: 9SIVB8UKAA0046
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For 3Y DC 720W Switching Power Supply YM-2721D
- Model #: 744623301228
- Item #: 9SIVB8UKCV8113
- Return Policy: Magicpower Return Policy
Refurbished: SPR1C350 Array Networks APV 5200 3520 350W Module Power Supply
- Model #: 753525948202
- Item #: 9SIVB8UKA99982
- Return Policy: Magicpower Return Policy
Refurbished: For EFRP-553 EFRP-553V3 Power Supply 550W
- Model #: 726727730913
- Item #: 9SIVRWKKXA3261
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs For R240 250W AC250E-S0 Power Supply with Wire, Cold Power Supply ...
- Model #: 792597702664
- Item #: 9SIVRWKKXD2225
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Small Standard 1U 300W Switching Power Supply ENH-0630A
- Model #: 744623316482
- Item #: 9SIVB8UKD46526
- Return Policy: Magicpower Return Policy
Refurbished: P1S-2300V-R Server Power Supply 300W
- Model #: 753525948325
- Item #: 9SIVB8UKA99980
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for GST280A12-C6P WJS12125 FSP065-AACA CAM090121 F150723-A ...
- Model #: 716837086369
- Item #: 9SIVB8UKX58952
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Module FNP1800-S101G
- Model #: 722954723544
- Item #: 9SIVT8HKWF3087
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For P1S-2400V-R Server Module Power Supply 400W
- Model #: 726727723441
- Item #: 9SIVRWKKXA2473
- Return Policy: Nytke team Return Policy
Refurbished: For FSP065-REBN2 FSP065-10AABA FSP065-REBN2-R FSP065-10AADA Power ...
- Model #: 726727819380
- Item #: 9SIVRWKKXB1440
- Return Policy: Nytke team Return Policy
Refurbished: For FSP ATX350-10HIA 9PA350DF00 AOC
- Model #: 752804574316
- Item #: 9SIVRWKKXB1877
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for PWS-441P-1H 480W 1U Server Power Supply
- Model #: 792597709571
- Item #: 9SIVRWKKXD4026
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for VCR Power Supply DPS-200PB-176B FSP200-50GSV DPS-250AB-47E
- Model #: 716837092810
- Item #: 9SIVB8UKX61561
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for YM-2821F 820W YM-2821FAR YH-5821F YH5821-XFAR Power Supply
- Model #: 716837086024
- Item #: 9SIVB8UKX58921
- 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.
