Power Supplies - Showing 2089 - 2112 of 17941 Products
Refurbished: For 080 7070 7080MT Desktop Power Graphics Card 6 + 8 500W Power Supply
- Model #: 726727732733
- Item #: 9SIVRWKKXA3681
- Return Policy: Nytke team Return Policy
Refurbished: PAA75F-24 Original Disassembly Switching Power Supply 24V/3.2A
- Model #: 753525984439
- Item #: 9SIVB8UKAA9113
- 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: 1pcs for MRW-6350P-R Industrial Control Power Module MRW-6350P
- Model #: 716837097372
- Item #: 9SIVB8UKX62907
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Module For HD22005-3
- Model #: 753525991932
- Item #: 9SIVSY0KUV6128
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 280 288 600 800 G2 G3 G4 901759-001 500W Power Graphics Card
- Model #: 722954729676
- Item #: 9SIVB8UKAA5551
- Return Policy: Magicpower Return Policy
Refurbished: PWS-501P-1R 500W
- Model #: 724780182342
- Item #: 9SIVB8UKA98877
- Return Policy: Magicpower Return Policy
Refurbished: For NF5170M4 SA5112M4 550W Power Supply GW-CRPS550 ...
- Model #: 726727817171
- Item #: 9SIVRWKKXB1007
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DL320E G8 DPS-250AB-95 A 803700-101 809669-001 Server Power ...
- Model #: 792597724352
- Item #: 9SIVRWKKXD9057
- Return Policy: Nytke team Return Policy
Refurbished: NF5460M4 NF8480M4 800W Server Power Module FSP800-20ERM
- Model #: 703454925225
- Item #: 9SIVB8UKA98702
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 600W Switching Power Supply HK701-11PEP
- Model #: 744623305172
- Item #: 9SIVB8UKD01870
- Return Policy: Magicpower Return Policy
Refurbished: For 459526-504 C7000 708046-001 456204-B21
- Model #: 752804572893
- Item #: 9SIVRWKKXB1650
- Return Policy: Nytke team Return Policy
Refurbished: 100W Power Supply FSP100-30GAF HPS100-CMCDF
- Model #: 753525942446
- Item #: 9SIVSYTKUT0149
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: EX4300-48P 550W Power Supply JPSU-550-DC-AFO 740-046875 DPS-550RB ...
- Model #: 703454716311
- Item #: 9SIVB8UKAJ6022
- Return Policy: Magicpower Return Policy
Refurbished: For 5796 Power Supply 7314-G30 300W 00FW759 44V4294
- Model #: 752804573135
- Item #: 9SIVRWKKXB1673
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 500W power module PSC500-A YM-2501BAR WOPSA5000 ...
- Model #: 745635673983
- Item #: 9SIVB8UKD64794
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AEK-3000-48 48V62.5A3000W switching power supply
- Model #: 792597718214
- Item #: 9SIVRWKKXD7190
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO For CWT SATA*4+IDE*4 250W Power Supply PSF250M-20
- Model #: 744623316031
- Item #: 9SIVB8UKD46451
- Return Policy: Magicpower Return Policy
Refurbished: IFRP-532NF MAX 530W Disk Array Power Supply
- Model #: 753525949254
- Item #: 9SIVB8UKAA0124
- Return Policy: Magicpower Return Policy
Refurbished: Server Power Module PS-2162-5L
- Model #: 722954721144
- Item #: 9SIVB8UKAA6771
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply FSP270-60LE ITX cash register
- Model #: 792597982820
- Item #: 9SIVB8UKX56760
- Return Policy: Magicpower Return Policy
Refurbished: For AJ744A MSA2000 Storage FC Fiber Controller 481319-001
- Model #: 726727817416
- Item #: 9SIVRWKKXB1009
- 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: KHACHIMO CP E SNT 100W 15V 6.6A 100W 7760052199
- Model #: 759950240065
- Item #: 9SIVB8UKDA0350
- 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.
