Power Supplies - Showing 1993 - 2016 of 17938 Products
Refurbished: 12V13A 156W Power Supply PA-1151-2 34-0967-01/02/03 34-0967
- Model #: 753525944884
- Item #: 9SIVB8UKA99595
- Return Policy: Magicpower Return Policy
Refurbished: For 280W Power Supply PS-5281-7VR DPS-280FBA HK380-12GP PC6001
- Model #: 726727732146
- Item #: 9SIVRWKKXA3409
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R730 R740 1100W Power Supply E1100D-S0 05G4WK 05G4WJ
- Model #: 716837088271
- Item #: 9SIVB8UKX59829
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2U 350W Switching Power Supply V2H-5350V
- Model #: 744623304502
- Item #: 9SIVB8UKCW6223
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For 12V50A 600W SE-600 SE-600-12
- Model #: 759950245534
- Item #: 9SIVB8UKDA9296
- Return Policy: Magicpower Return Policy
Refurbished: 80plus Platinum 1288H V5 2288H V5 2488 V5 2488H V5 5885H V5 1500W Power ...
- Model #: 753525945959
- Item #: 9SIVB8UKA99672
- Return Policy: Magicpower Return Policy
Refurbished: IFRP-532NF MAX 530W Disk Array Power Supply
- Model #: 753525949254
- Item #: 9SIVB8UKAA0124
- Return Policy: Magicpower Return Policy
Refurbished: For Pe860 Server Power Supply PE860 RH744, XH225
- Model #: 726727728514
- Item #: 9SIVRWKKXA2858
- Return Policy: Nytke team Return Policy
Refurbished: For B5040 B4655 B5035 B5030 A9050 Power Supply PS- 2151-08 VB 1pcs
- Model #: 726727733617
- Item #: 9SIVRWKKXA3823
- Return Policy: Nytke team Return Policy
Refurbished: For TS140 TS230 M6300 M6400 Power Supply HK280-23FP PCB037 ...
- Model #: 726727732238
- Item #: 9SIVRWKKXA3526
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO RD650 RD550 RD450 RD350 750W Switching Power Supply ...
- Model #: 744623301105
- Item #: 9SIVB8UKCV8114
- Return Policy: Magicpower Return Policy
Refurbished: For YM-2461A YM-2461AAR YM-2651Y YM-2651R YM-2651K KAR Power ...
- Model #: 726727818369
- Item #: 9SIVRWKKXB1325
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 300W Switching Power Supply MRT-6300P-R
- Model #: 744623317038
- Item #: 9SIVB8UKD64504
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for MR482000MH-ZJ Communication Power Supply ZHR481800G | M ...
- Model #: 792597720835
- Item #: 9SIVRWKKXD7983
- Return Policy: Nytke team Return Policy
Refurbished: For ST-400NAG-05F 400W Server Module Power Supply
- Model #: 722954731617
- Item #: 9SIVB8UKAA5731
- Return Policy: Magicpower Return Policy
Refurbished: For DL360 380G10 500W Power Supply 865408-B21 865398-001 866729-001
- Model #: 726099253980
- Item #: 9SIVRWKKXD2041
- Return Policy: Nytke team Return Policy
Refurbished: X3650M5 X3550M5 X3850X6 DC 900W Switching Power Supply ...
- Model #: 753525936124
- Item #: 9SIVB8UKA99441
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for T750 7000 blade 9000K module power supply PS-4851-1 850W
- Model #: 716837092117
- Item #: 9SIVB8UKX61389
- Return Policy: Magicpower Return Policy
Refurbished: XW8600 original power supply DPS-1050CB A rated power 1050W
- Model #: 703454722947
- Item #: 9SIVB8UKAJ6754
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Bronze Thinkserver TD330 TD340 625W Switching Power ...
- Model #: 744623317373
- Item #: 9SIVB8UKD64639
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PowerEdge T310 Power Supply N375E-01 L375E-S0 T122K T128K
- Model #: 716837082873
- Item #: 9SIVB8UKX57503
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 510 ATX-PFC 550W T51X-TY
- Model #: 759950247903
- Item #: 9SIVB8UKDF9436
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-802A-1R 800W Ultra Micro Server Power Supply pws-802A-1r
- Model #: 726727817201
- Item #: 9SIVRWKKXB1010
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-250AB-24 B 250W NAS Network Equipment Power Supply
- Model #: 726727722772
- Item #: 9SIVRWKKXA2336
- Return Policy: Nytke team 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.
