Power Supplies - Showing 2377 - 2400 of 17993 Products
Refurbished: 28V 300W 12A AC100-240V Power Supply For EWS300-28 EWS 300-28
- Model #: 753525988574
- Item #: 9SIVB8UKAA7654
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module QC11CMUB
- Model #: 722954723537
- Item #: 9SIVT8HKWF3262
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO 520 320 330 280W Power Supply FH280P-00 H280P-00 ...
- Model #: 744623301778
- Item #: 9SIVB8UKCV8188
- Return Policy: Magicpower Return Policy
Refurbished: For FSP120-AFB FSP120-AFA FSP120-AFAN2-H3 round port 48V2.2 * 5.5
- Model #: 726727819182
- Item #: 9SIVRWKKXB1331
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply For TQW14A-48S12-R 100-240VAC
- Model #: 753525989755
- Item #: 9SIVB8UKAA7783
- Return Policy: Magicpower Return Policy
Refurbished: New Switching Power Supply S8FS-C07515 For 75W 15V AC100240V
- Model #: 753525988826
- Item #: 9SIVB8UKAA7660
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for YM-2461A YM-2461AA03R AS520E-M1 460W storage power supply
- Model #: 792597709816
- Item #: 9SIVRWKKXD4147
- Return Policy: Nytke team Return Policy
Refurbished: VLT80-4004 For EOS 70W Device Power Supply
- Model #: 753525949780
- Item #: 9SIVB8UKAA0139
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W Power Supply BTX-500SE BTX-500SE(A)
- Model #: 744623308029
- Item #: 9SIVB8UKD06305
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Platinum Quanta D51PC-1U D52T-1U 700W Switching ...
- Model #: 744623308265
- Item #: 9SIVB8UKD06302
- Return Policy: Magicpower Return Policy
Refurbished: For Aruba JL086A HPE switching power supply DPS-650AB-5 P/N: 0957-2475
- Model #: 752804573814
- Item #: 9SIVRWKKXB1785
- Return Policy: Nytke team Return Policy
Refurbished: For RMS-6 DMX800 Storage Power Supply 071-000-326 7000672-0000
- Model #: 726727816747
- Item #: 9SIVRWKKXB0981
- Return Policy: Nytke team Return Policy
Refurbished: 0.45A 24V Power Supply For VAF1024 XOMM VAF1024 X0MM
- Model #: 753525989434
- Item #: 9SIVB8UKAA7752
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Module For ABB Power Supply PM564-R-AC ...
- Model #: 759950246449
- Item #: 9SIVB8UKDA9410
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U 270W Switching Power Supply FSP270-60LE FSP220-60LB ...
- Model #: 744623316598
- Item #: 9SIVB8UKD46529
- Return Policy: Magicpower Return Policy
Refurbished: For I620-G20 G10 A420R-G A620R-G 550W Redundant Power Supply ...
- Model #: 726727817584
- Item #: 9SIVRWKKXB0845
- Return Policy: Nytke team Return Policy
Refurbished: For BR-5000 60-1000315-03 switching power supply
- Model #: 752804574088
- Item #: 9SIVRWKKXB1799
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 790 990 3010 7010 9010 SFF 240W Power Supply JNPVV ...
- Model #: 745635675055
- Item #: 9SIVB8UKDA0214
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for R48-4000e3 R48-3500E4 R48-3500e3 C400/48-3500E3
- Model #: 792597719266
- Item #: 9SIVRWKKXD7467
- Return Policy: Nytke team Return Policy
Refurbished: For T410 Server, Power Supply 0F5XMD Model: A580E-S0
- Model #: 726727730326
- Item #: 9SIVRWKKXA3174
- Return Policy: Nytke team Return Policy
Refurbished: For EPR-303R 300W Redundant Power Supply
- Model #: 726727731231
- Item #: 9SIVRWKKXA3354
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FWS350A-24 FINE Switching Power Supply 24V 14.6A
- Model #: 792597723539
- Item #: 9SIVRWKKXD8756
- Return Policy: Nytke team Return Policy
Refurbished: For CEHP300-12A Power Module
- Model #: 752804577539
- Item #: 9SIVRWKKXB2207
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 80plus Bronze 2U 600W Switching Power Supply GW-EPS2U600
- Model #: 744623306285
- Item #: 9SIVB8UKD01943
- 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.
