Power Supplies - Showing 2329 - 2352 of 17930 Products
Refurbished: For DS10 workstation power supply 30-50454-03 30-50454-01
- Model #: 726727725919
- Item #: 9SIVRWKKXA2664
- Return Policy: Nytke team Return Policy
Refurbished: PAC1000S56-CB Switch Power Supply 02312KND
- Model #: 722954733208
- Item #: 9SIVB8UKAA5918
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for MG1X/RG1X/G1X/R1X-1060V12 (ROHS) 60W Power Supply ...
- Model #: 792597710034
- Item #: 9SIVRWKKXD4118
- Return Policy: Nytke team Return Policy
Refurbished: For StorageWorks Power Supply 406402-001 406832-001 DPS-200PB-129 A
- Model #: 726727730982
- Item #: 9SIVRWKKXA3330
- Return Policy: Nytke team Return Policy
Refurbished: For 150W DC5V Power Supply S8FS-C15005J Instead of S8JC-Z15005CD
- Model #: 753525990515
- Item #: 9SIVB8UKAA7939
- Return Policy: Magicpower Return Policy
Refurbished: PAC-600WA-B S6720 Switch 600W AC Power Module
- Model #: 722954733291
- Item #: 9SIVB8UKAA5907
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Micro MATX HTPCFX 300W Switching Power Supply HK400-41FP
- Model #: 744623315409
- Item #: 9SIVB8UKD46440
- Return Policy: Magicpower Return Policy
Refurbished: For A840R-G -10 server power supply 3Y YM-2102B YM-2102BBR 1000W
- Model #: 726727817744
- Item #: 9SIVRWKKXB1280
- Return Policy: Nytke team Return Policy
Refurbished: For HAC250P-490(E)/PS3314 PCI254-1022-4-PSN 250W
- Model #: 726727821222
- Item #: 9SIVRWKKXB1545
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Alienware R8R7 850W Power Supply D850EF-00 D850EF-01 NJVDN ...
- Model #: 744623313870
- Item #: 9SIVB8UKD21765
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1200W Power Supply PS-4122-1 PS-4122-1 HA N28487-001
- Model #: 744623310947
- Item #: 9SIVB8UKD12139
- Return Policy: Magicpower Return Policy
Refurbished: EX4500 EX4500-PWR1-AC-FB EX4500-PWR1-AC-BF DS1200-3-002 ...
- Model #: 753525957808
- Item #: 9SIVB8UKAA9015
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply HK280-73PP PA- 2181-2 FSP180-20TLA PCJ010
- Model #: 716837089117
- Item #: 9SIVB8UKX60294
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS C9K-PWR-650WAC-R 650W C9500 Series AC Power Supply
- Model #: 753525933055
- Item #: 9SIVB8UKA99119
- Return Policy: Magicpower Return Policy
Refurbished: PWR-400W-AC 400W RH1547-E 341-0243 6524GT-8S Power Supply
- Model #: 753525954890
- Item #: 9SIVB8UKAA0278
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply 3Y 350W Power Supply YM-6351N YM-6351NAR
- Model #: 759950243905
- Item #: 9SIVB8UKDA9090
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 550W power supply U1A-A10550-DR
- Model #: 792597708192
- Item #: 9SIVRWKKXD3841
- Return Policy: Nytke team Return Policy
Refurbished: EXP200 EXP500 350W Switching Power Supply 19K1164 AA20910
- Model #: 753525942415
- Item #: 9SIVB8UKAA5138
- Return Policy: Magicpower Return Policy
Refurbished: ST-450P-CG P-CG 450W
- Model #: 703454719572
- Item #: 9SIVB8UKAJ6423
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for PWS-652-2H 2U server power supply 650W PWS-652-2H
- Model #: 731029999630
- Item #: 9SIVRWKKXD1177
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for ST-220FUB-05E 220W Small 1U Industrial Computer Equipment ...
- Model #: 726099252433
- Item #: 9SIVRWKKXD1790
- Return Policy: Nytke team Return Policy
Refurbished: Switching Power Supply S8FS-C01512J For 15W 12V AC100240V
- Model #: 753525990270
- Item #: 9SIVB8UKAA7840
- Return Policy: Magicpower Return Policy
Refurbished: R620 R720 R820 Server Power Supply 1100W E1100E-S0 NTCWP
- Model #: 703454719343
- Item #: 9SIVB8UKAJ6385
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For LTO6 HH FC Drive Module 35P1982 TS3100 TS3200 39U3428
- Model #: 716837096016
- Item #: 9SIVB8UKX62694
- 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.
