Power Supplies - Showing 2305 - 2328 of 17940 Products
Refurbished: 1Pcs for 1U power supply FSP270-60LE 500W FLEX small chassis NAS desktop ...
- Model #: 716837089858
- Item #: 9SIVB8UKX60462
- Return Policy: Magicpower Return Policy
Refurbished: For TX300/RX300 S2 power supply PS-3601-1F A3C40084174
- Model #: 726727726091
- Item #: 9SIVRWKKXA2712
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 790DT 990dt 390DT Computer host TFX small chassis power supply ...
- Model #: 792597706129
- Item #: 9SIVRWKKXD2919
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 80plus Platinum Quanta D51PC-1U D52T-1U 700W Switching ...
- Model #: 744623308265
- Item #: 9SIVB8UKD06302
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Module For ABB Power Supply PM564-R-AC ...
- Model #: 759950246449
- Item #: 9SIVB8UKDA9410
- Return Policy: Magicpower Return Policy
Refurbished: FSP600-40MRA(M) 600W For FSP Medical FSP600-40MRA Switching Power ...
- Model #: 753525949292
- Item #: 9SIVB8UKAA0081
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 10-pin PCG010 small chassis power supply HK280-72PP PA-2181-2 ...
- Model #: 792597982486
- Item #: 9SIVB8UKX56668
- Return Policy: Magicpower Return Policy
Refurbished: For MD1200 MD3200 Server Power Supply 600W 06N7YJ JD7W3 H600E-S0
- Model #: 726727816761
- Item #: 9SIVRWKKXB0820
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PWR-C45-4200ACV Catalyst 4500 4200W Power Supply 341-0083-05
- Model #: 792597726356
- Item #: 9SIVRWKKXD9597
- Return Policy: Nytke team Return Policy
Refurbished: For FSP700-50RAB FSP500-70RGHBB1 FSP700-70RGHBE1 tower redundant ...
- Model #: 726727819441
- Item #: 9SIVRWKKXB1386
- Return Policy: Nytke team Return Policy
Refurbished: For GW-CRPS550B N Server Power Supply GW-CRPS550S-2H 550W
- Model #: 752804578048
- Item #: 9SIVRWKKXB2225
- Return Policy: Nytke team Return Policy
Refurbished: PWS-1K25P-PQ 1200W Medical Equipment Server Power Supply
- Model #: 753525985962
- Item #: 9SIVB8UKAA8449
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply For SNP-9549-MV 100-240VAC SNP-9549
- Model #: 753525990294
- Item #: 9SIVB8UKAA7847
- Return Policy: Magicpower Return Policy
Refurbished: 300W Switching Power Supply ORION-301-T
- Model #: 753525943795
- Item #: 9SIVB8UKAA5281
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for V7000 G2 Storage Power Supply 31P1848 TDPS-1200BB A 00RY003 ...
- Model #: 792597984480
- Item #: 9SIVB8UKX57074
- Return Policy: Magicpower Return Policy
Refurbished: MAX POWER 500W Power Supply PS-4501-2 L84091
- Type: ATX
- Model #: 753525937749
- Item #: 9SIVSYTKUT3231
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: For HPE Gen10 865408-B21 866729-001 865398-001 865399-201 500W ...
- Model #: 753525987683
- Item #: 9SIVB8UKAA8765
- 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: For TDK-LAMBDA Switching Power Supply SWS1000L-24
- Model #: 752804578895
- Item #: 9SIVRWKKXB2332
- Return Policy: Nytke team Return Policy
Refurbished: ENH-1940 1U 400W
- Model #: 753525984200
- Item #: 9SIVB8UKAA9075
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R4875G1 48V75A communication power supply
- Model #: 792597722082
- Item #: 9SIVRWKKXD8316
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 250W Power Supply EPR-251
- Model #: 759950246944
- Item #: 9SIVB8UKDA9458
- 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: Server Power Supply For Huntkey HK600-11PEP 500W
- Model #: 724780183066
- Item #: 9SIVB8UKA98966
- 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.
