Power Supplies - Showing 2377 - 2400 of 18350 Products
Refurbished: For X4270 Machine Power Supply FSP180-10TGBAA D17-180P1A 6+4 Pin
- Model #: 722954730917
- Item #: 9SIVB8UKAA5695
- Return Policy: Magicpower Return Policy
Refurbished: SFXA5201A For Delta Haikong Hard Disk Recorder Power Supply ...
- Model #: 722954733666
- Item #: 9SIVB8UKAA5949
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for Power Electronics NE100AC24ATEZ 27V 100A 2725w Power Supply ...
- Model #: 792597721573
- Item #: 9SIVRWKKXD8154
- Return Policy: Nytke team Return Policy
Refurbished: For MAP55-4003 POWER-ONE Switch Power Supply
- Model #: 722954722264
- Item #: 9SIVB8UKAA6874
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-550LB A/B/C/D Server 2U Power Module 550W
- Model #: 792597725847
- Item #: 9SIVRWKKXD9513
- Return Policy: Nytke team Return Policy
Refurbished: PSU For TC SURE STAR 400W Switching Power Supply R8P-400 SS-400R8P
- Model #: 753525934700
- Item #: 9SIVB8UKA99279
- Return Policy: Magicpower Return Policy
Refurbished: 12V 165A 2060W high-power power supply AA25420L 300-2159-03
- Model #: 703454721513
- Item #: 9SIVB8UKAJ6612
- Return Policy: Magicpower Return Policy
Refurbished: For GW-EPS2U600 600W 2U server power supply
- Model #: 752804576532
- Item #: 9SIVRWKKXB2111
- Return Policy: Nytke team 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: 1Pcs for TC I-STAR TC-500R8A 500W Device Module Power Supply
- Model #: 716837090182
- Item #: 9SIVB8UKX60634
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO GX520 GX620 5100C 5150C 220W Switching Power Supply ...
- Model #: 744623301020
- Item #: 9SIVB8UKCV8128
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ST-352UAG-05E ATX-1260GA1 ATX-250-12Z ACE-920A ACE-935AL ...
- Model #: 716837086710
- Item #: 9SIVB8UKX59186
- Return Policy: Magicpower Return Policy
Refurbished: N2200-PAC-400W Power Supply PS-2421-1-LF NEXUS2000 400W Work Good
- Model #: 753525933734
- Item #: 9SIVB8UKA99190
- 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: For Power Supply For PM-B2112-48-MC
- Model #: 753525991659
- Item #: 9SIVB8UKAA8143
- Return Policy: Magicpower Return Policy
Refurbished: PBA1500F-24 PBA1500F Series High Power Supply 24V 70A 1500W
- Model #: 753525947274
- Item #: 9SIVB8UKA99903
- Return Policy: Magicpower Return Policy
Refurbished: H3C Switch Power Supply FSP054-1H04 FSP054-1S02 HSR54-A HSR54-6000 ...
- Model #: 753525989212
- Item #: 9SIVB8UKAA7715
- Return Policy: Magicpower Return Policy
Refurbished: For TS140 TS230 M6300 M6400 Power Supply HK280-23FP PCB037 ...
- Model #: 726727732238
- Item #: 9SIVRWKKXA3526
- Return Policy: Nytke team Return Policy
Refurbished: 620W Power Supply HVP620-D540I
- Model #: 753525946390
- Item #: 9SIVSY0KUU8567
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for 390 790 990SFF Small Chassis Power Supply H240AS-00 3WN11 ...
- Model #: 716837089070
- Item #: 9SIVB8UKX60325
- Return Policy: Magicpower Return Policy
Refurbished: For FSP600-40MRA (M) 600W redundant power supply FSP600-40MRA
- Model #: 726727731828
- Item #: 9SIVRWKKXA3369
- Return Policy: Nytke team Return Policy
Refurbished: FSP300-20GSV 24 Pin For FSP Group FSP300-20GSV 300W VCR Power Supply
- Model #: 753525948271
- Item #: 9SIVB8UKA99960
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for network power supply DS850-3 power module 3.3V
- Model #: 792597727049
- Item #: 9SIVB8UKX32605
- Return Policy: Magicpower Return Policy
Refurbished: TDK-LAMBDA HWS1500 1500W Switching Power Supply HWS1500-24
- Type: ATX
- Model #: 753525937954
- Item #: 9SIVSY0KUV8165
- Return Policy: LiAnMengYuShangDian 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.
