Power Supplies - Showing 2281 - 2304 of 17933 Products
Refurbished: For API6PC05 Computer Host Desktop Power Supply 250W With 24P
- Model #: 722954728518
- Item #: 9SIVB8UKAA5426
- Return Policy: Magicpower Return Policy
Refurbished: RG-PA70I Power Module RG-S5750-H Series
- Model #: 722954731549
- Item #: 9SIVB8UKAA5753
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For SMU02B1
- Model #: 753525988895
- Item #: 9SIVB8UKAA7691
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R320 R420 Server DPS-D550EMB-S0 Power Supply 550W RYMG6 ...
- Model #: 792597709434
- Item #: 9SIVRWKKXD4028
- Return Policy: Nytke team Return Policy
Refurbished: For 400/800 GB Linear Tape Open LTO3 SCSI Drives 23R4808
- Model #: 726727776270
- Item #: 9SIVRWKKXA7192
- Return Policy: Nytke team Return Policy
Refurbished: LKT50F-525 For Industrial Medical Equipment Power Supply ...
- Model #: 724780778415
- Item #: 9SIVB8UKAA6646
- Return Policy: Magicpower Return Policy
Refurbished: RMB50A-2 Original Disassembly Switching Power Supply 24V/1.8A 50W
- Model #: 753525956771
- Item #: 9SIVB8UKAA8898
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 12 pins 500W power supply FSP500-50AAGA 8 pins
- Model #: 716837089315
- Item #: 9SIVB8UKX60328
- Return Policy: Magicpower Return Policy
Refurbished: For RG-M6220-AC460E-F Switch Server Power Supply 460W
- Model #: 722954730047
- Item #: 9SIVB8UKAA5595
- Return Policy: Magicpower Return Policy
Refurbished: 36V41.7A AEK-1500 1500W Power Supply AEK-1500-36
- Model #: 722954989582
- Item #: 9SIVB8UKAJ5630
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PSR720-24A GPR720-24A switching power supply
- Model #: 792597704781
- Item #: 9SIVRWKKXD2613
- Return Policy: Nytke team Return Policy
Refurbished: 930W Power Supply UCSC-PSU-930WDC 341-0496-01
- Model #: 753525946406
- Item #: 9SIVB8UKA99750
- Return Policy: Magicpower Return Policy
Refurbished: For R1CA2801A Server Power Supply
- Model #: 752804576785
- Item #: 9SIVRWKKXB2115
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 300W Switching Power Supply SP2-4300F
- Model #: 726099222733
- Item #: 9SIVB8UKCU6254
- Return Policy: Magicpower Return Policy
Refurbished: Server Power Supply ML370 G2 G3 216068-002 230993-001 EPS115 500W
- Model #: 753525956733
- Item #: 9SIVB8UKAA8932
- Return Policy: Magicpower Return Policy
Refurbished: PSU For SH SB-4120X 400W Power Supply SHRD-400P-P
- Model #: 753525941876
- Item #: 9SIVB8UKAA5028
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 400W Switching Power Supply FSP400-50UCB FSP300-50UCB
- Model #: 744623316741
- Item #: 9SIVB8UKD64482
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for PSA350M server redundant power supply PSA350M machine power ...
- Model #: 792597712625
- Item #: 9SIVRWKKXD4775
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For YM-2102NAR Power Supply YM-2102N 1000w
- Model #: 792597703883
- Item #: 9SIVRWKKXD2434
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Blade2500 B2500 475W Switching Power Supply DPS-465AB-2 A ...
- Model #: 744623311135
- Item #: 9SIVB8UKD12174
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for D460AM-03 AC460EM-01 HU460AM-01XPS8910 460W Power Supply
- Model #: 792597982851
- Item #: 9SIVB8UKX56771
- Return Policy: Magicpower Return Policy
Refurbished: 27V37A 1000W Power Supply HCP1000PS27
- Model #: 703454716076
- Item #: 9SIVB8UKAJ6049
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP180-50LH industrial control host power supply 180W small 1u
- Model #: 792597705047
- Item #: 9SIVRWKKXD2648
- Return Policy: Nytke team Return Policy
Refurbished: P100E-24 Industrial Medical Equipment Power Supply 24V/4.5A
- Model #: 724780779276
- Item #: 9SIVSYTKUT8047
- Return Policy: SuZhouLiYuanLiXinBaiHuo 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.
