Power Supplies - Showing 2161 - 2184 of 17942 Products
Refurbished: 341-0176-03 Power Supply Used On AIR-WLC4402 WLC4404 Series Switches
- Model #: 753525984460
- Item #: 9SIVB8UKAA9125
- Return Policy: Magicpower Return Policy
Refurbished: 510S PA-1261-7 Small Case Power Supply 260W 6+4 Pin
- Model #: 722954727351
- Item #: 9SIVSYTKUT4636
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: For 071-000-569-03 700-0047551-0000 AC 1080W power supply
- Model #: 726727821505
- Item #: 9SIVRWKKXB1573
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO New Power Supply For GERM4815TRG
- Model #: 759950247804
- Item #: 9SIVB8UKDF9446
- Return Policy: Magicpower Return Policy
Refurbished: SRW-100-2002 For IPD Industrial Medical Equipment Power Supply ...
- Model #: 753525955316
- Item #: 9SIVB8UKAA0302
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CR48-3G switching power supply module CR48
- Model #: 716837094456
- Item #: 9SIVB8UKX62115
- Return Policy: Magicpower Return Policy
Refurbished: For RX300 S5/S6 Server Power Module DPS-800GB-3 A
- Model #: 752804574736
- Item #: 9SIVRWKKXB1882
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for ETP48200-C5E1 Power Supply 48V200A R4850G Module
- Model #: 716837093442
- Item #: 9SIVB8UKX61707
- Return Policy: Magicpower Return Policy
Refurbished: R510 R910 Z1100P-00 7001515-J100 Server Power Supply 1100W
- Model #: 722954727153
- Item #: 9SIVB8UKAA7390
- Return Policy: Magicpower Return Policy
Refurbished: For RG-M6220-AC460E-F Server Power Supply
- Model #: 752804578314
- Item #: 9SIVRWKKXB2319
- Return Policy: Nytke team Return Policy
Refurbished: For IDP PWS-401-1R 400W Server, Power Supply
- Model #: 726727734386
- Item #: 9SIVRWKKXA4198
- Return Policy: Nytke team Return Policy
Refurbished: For F80/F85 power supply 21P6417 24l1400 53p1079 53p2830 97p4024
- Model #: 726727725094
- Item #: 9SIVRWKKXA2625
- Return Policy: Nytke team Return Policy
Refurbished: R720 R620 R520 Server Power 495W N24MJ 3GHW3 D495E-S
- Model #: 722954735141
- Item #: 9SIVB8UKAA6134
- Return Policy: Magicpower Return Policy
Refurbished: For 8-pin large power supply 290W desktop power supply P2W4R HYV3H KGF74 ...
- Model #: 752804572695
- Item #: 9SIVRWKKXA2137
- Return Policy: Nytke team Return Policy
Refurbished: ASA-PWR-AC power module
- Model #: 703454721438
- Item #: 9SIVB8UKAJ6580
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PMT 12V12.5A 150W Power Supply PMT-12V150W1AA
- Model #: 759950244711
- Item #: 9SIVB8UKDA9196
- Return Policy: Magicpower Return Policy
Refurbished: For Switched Power Supply U1A-D10550-DRB-H 550W
- Model #: 722954731860
- Item #: 9SIVSY0KUS8881
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: MRW-6400P-R 400W Server Redundant Power Module
- Model #: 722954731914
- Item #: 9SIVB8UKAA5797
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 7120 2010 DPS-350AB-24 A 96PS-A350WFX Small 1u Industrial ...
- Model #: 792597726066
- Item #: 9SIVRWKKXD9483
- Return Policy: Nytke team Return Policy
Refurbished: DL180G6 AC-063-2 A Power Cage Distribution Board 519200-001 515766-001
- Model #: 722954734229
- Item #: 9SIVB8UKAA6025
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 450W Switching Power Supply 300XA 200XA
- Model #: 744623305004
- Item #: 9SIVB8UKD01853
- Return Policy: Magicpower Return Policy
Refurbished: DS760SL-3 760W Server Redundant Power Supply
- Model #: 722954730498
- Item #: 9SIVB8UKAA5628
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for PW-150ATX-S power supply
- Model #: 792597983100
- Item #: 9SIVB8UKX56864
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPR4850-E-DGC communication power supply ESR-4856F Z 48V50A
- Model #: 716837094838
- Item #: 9SIVB8UKX62283
- 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.
