Power Supplies - Showing 2161 - 2184 of 17943 Products
Refurbished: Power Supply FH-ZD221MGR DPS-180AB-20A DPS-220AB-6A D10-220P ...
- Model #: 722954987557
- Item #: 9SIVB8UKAA6497
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for D14-1K51A power supply 1500W D1K5E001H CZ309-60068
- Model #: 716837085041
- Item #: 9SIVB8UKX58367
- Return Policy: Magicpower Return Policy
Refurbished: 125W Power Supply PWR-2811-AC 341-0065-01
- Model #: 703454715581
- Item #: 9SIVB8UKAJ5966
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1000W Power Supply SRX1K-PWR-AC DS1050-3-001-FF
- Model #: 759950242397
- Item #: 9SIVB8UKDA8809
- Return Policy: Magicpower Return Policy
Refurbished: For C240 M4 Power Supply DPST-1400AB A UCSC-PSU2-1400W ...
- Model #: 726727816662
- Item #: 9SIVRWKKXB0847
- Return Policy: Nytke team Return Policy
Refurbished: For MMP260-3.8-B 3.8V50A
- Model #: 752804576068
- Item #: 9SIVRWKKXB2070
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply 231A 198139A-01-RHPS231A
- Model #: 759950245015
- Item #: 9SIVB8UKDA9285
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 865W Switching Power Supply PWS-865-PQ
- Model #: 744623298252
- Item #: 9SIVB8UKCU6423
- Return Policy: Magicpower Return Policy
Refurbished: For H730 H730P H132V 0H132V 37CT1
- Model #: 752804572985
- Item #: 9SIVRWKKXB1663
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for ESR-48/56FZ DPR48/50-E-DGC Power Module
- Model #: 792597717491
- Item #: 9SIVRWKKXD6745
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for E9000 Knife Case Server Power Supply PPC34 A014 V1.1
- Model #: 716837097648
- Item #: 9SIVB8UKX62968
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply KSA-180S2 KSA-180S2-A DPS-200PB-185 A ...
- Model #: 744623307848
- Item #: 9SIVB8UKD06456
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 500W Switching Power Supply FSP500-40MRB(M) FSP500-40MRB
- Model #: 744623304809
- Item #: 9SIVB8UKCW6250
- Return Policy: Magicpower Return Policy
Refurbished: For NL400 Server Power Supply DS1050-3
- Model #: 726727776041
- Item #: 9SIVRWKKXA5075
- Return Policy: Nytke team Return Policy
Refurbished: 300W Power Supply BU-300P-24P ENSP-300P-S2F-00S
- Model #: 753525937312
- Item #: 9SIVB8UKA99539
- Return Policy: Magicpower Return Policy
Refurbished: 6548 F80 F85 138A Power Supply 53P2830 21P6417 53P1079 97P4024
- Model #: 722954734465
- Item #: 9SIVB8UKAA6074
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for Relay EVR40CI 40A 12VDC
- Model #: 792597720248
- Item #: 9SIVRWKKXD7651
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for FSP800-20ERM FSP800-50ERS 800W Modular Server Power Supply
- Model #: 792597726745
- Item #: 9SIVB8UKX32516
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-2K05A-1R 4028 4029 GPU Server Power Supply 2000W
- Model #: 726727734294
- Item #: 9SIVRWKKXA4055
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 6Pin 550W Power Supply PA-5181-3A PA-1181-10AC ...
- Model #: 744623301952
- Item #: 9SIVB8UKCV8208
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Vostro 200 220 390 790 990 3010 7010 9010 300W Power Supply ...
- Model #: 744623311074
- Item #: 9SIVB8UKD12141
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for YM-2721A 720W YM-2721ABR YM-2721ACR
- Model #: 792597709083
- Item #: 9SIVRWKKXD3939
- Return Policy: Nytke team Return Policy
Refurbished: For A141 R48-4000E 48V 4000W Power Supply
- Model #: 722954727801
- Item #: 9SIVB8UKAA7453
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Liteon R520G7 RH2285 750W Switching Power Supply ...
- Model #: 744623315362
- Item #: 9SIVB8UKD46425
- 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.
