Power Supplies - Showing 1993 - 2016 of 17938 Products
Refurbished: 1PCS for 675W 12V55A 7001484-J000
- Model #: 792597705696
- Item #: 9SIVRWKKXD2882
- Return Policy: Nytke team Return Policy
Refurbished: For Communication Power Module 3C17265
- Model #: 703454718728
- Item #: 9SIVB8UKAJ6338
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for JPSU-850W-AC-AFO 850W 740-053352 QFX5100
- Model #: 792597704330
- Item #: 9SIVRWKKXD2538
- Return Policy: Nytke team Return Policy
Refurbished: For C6600-CB50E20 1400W Knife Box Power Supply GW-ERP1U1400C-SG ...
- Model #: 726727775822
- Item #: 9SIVRWKKXA5085
- Return Policy: Nytke team Return Policy
Refurbished: PSU For API Power Supply API-6035
- Model #: 753525945348
- Item #: 9SIVB8UKA99629
- Return Policy: Magicpower Return Policy
Refurbished: For TDK-LAMBDA Vega 450 450W Power Supply Module
- Model #: 753525947373
- Item #: 9SIVB8UKA99898
- Return Policy: Magicpower Return Policy
Refurbished: PWS-501P-1R 500W
- Model #: 724780182342
- Item #: 9SIVB8UKA98877
- Return Policy: Magicpower Return Policy
Refurbished: For C3KX-PWR-350WAC WS-C3560X 3750X switch
- Model #: 726727731927
- Item #: 9SIVRWKKXA3392
- Return Policy: Nytke team Return Policy
Refurbished: For Communication Power Module QC11CMUB
- Model #: 722954723537
- Item #: 9SIVT8HKWF3262
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO R310 350W Switching Power Supply L350E-S0 D350E-S0 ...
- Model #: 744623310800
- Item #: 9SIVB8UKD12090
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for MRW-6350P-R Industrial Control Power Module MRW-6350P
- Model #: 716837097372
- Item #: 9SIVB8UKX62907
- Return Policy: Magicpower Return Policy
Refurbished: PSF200FP-69 PSF180FP-69
- Type: ATX
- Model #: 703454727591
- Item #: 9SIVSYTKUT5797
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: C521 Power Supply NH429 MH596 D233N
- Model #: 722954730641
- Item #: 9SIVB8UKAA5641
- Return Policy: Magicpower Return Policy
Refurbished: PCle 3.0 Poe Switching Power Supply STL2APCAA 03031SNT
- Model #: 753525945799
- Item #: 9SIVB8UKA99658
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R510 G6 1U 600W Switching Power Supply EFAP-601 36001025
- Model #: 744623302133
- Item #: 9SIVB8UKCV8234
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Workstation Z4 G4 750W Power Supply DPS-750AB-36 A ...
- Model #: 744623313009
- Item #: 9SIVB8UKD19620
- Return Policy: Magicpower Return Policy
Refurbished: HRS300-9000 HRS300-9000B Efficiency Communication Power Module
- Model #: 753525957105
- Item #: 9SIVT8HKWF2618
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: Server Power Module PS-2162-5L
- Model #: 722954721144
- Item #: 9SIVB8UKAA6771
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO N240 V240 400W Switching Power Supply AA23650 3001846-01 ...
- Model #: 744623315867
- Item #: 9SIVB8UKD46476
- Return Policy: Magicpower Return Policy
Refurbished: HWS150-12/TG HWS150-12 For TDK-LAMBDA 12V 13A Switching Power Supply
- Model #: 724780182847
- Item #: 9SIVB8UKA98931
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for L290EM-00 HU290EM-00 H290AM-00 AC290AM-00 Power Supply
- Model #: 792597727988
- Item #: 9SIVB8UKX32942
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R48-3000e3 48V 50A Switching Power Supply 3000W
- Model #: 716837094647
- Item #: 9SIVB8UKX62256
- Return Policy: Magicpower Return Policy
Refurbished: For Z6 G4 workstation power supply 1000W D15-1K0P1A851383-0
- Model #: 752804574750
- Item #: 9SIVRWKKXB1863
- Return Policy: Nytke team Return Policy
Refurbished: EPS30-4815 Power System Monitoring EPMU03
- Model #: 703454718247
- Item #: 9SIVB8UKAJ6297
- 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.
