Power Supplies - Showing 2017 - 2040 of 17941 Products
Refurbished: 1PCS for 2U GW-ERP2U1200 (90 +) -2H 1200W power supply
- Model #: 792597983476
- Item #: 9SIVB8UKX56871
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PMT 24V1.5A 35W Switcing Power Supply PMT-24V35W2BA
- Model #: 745635675246
- Item #: 9SIVB8UKDA0311
- Return Policy: Magicpower Return Policy
Refurbished: For AD701M53.5-1M1 Communication Power Module
- Model #: 722954726392
- Item #: 9SIVT8HKWF3242
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For H3C LSQM1DC650 PSR650-D 650W DC Power Supply SR6604 6608 S750
- Model #: 722954726644
- Item #: 9SIVSY0KUV4196
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For SGA005 1100W VNX5200/5400/071-000-036 1050W power supply
- Model #: 726099254062
- Item #: 9SIVRWKKXD2047
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Industrial computer power supply SH300A8H+P4 ENH-0135
- Model #: 745635673952
- Item #: 9SIVSY0KUR7886
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for FSP300-60GLC industrial computer equipment power supply
- Model #: 792597983278
- Item #: 9SIVB8UKX56885
- Return Policy: Magicpower Return Policy
Refurbished: PC1U-210P-X2S 210W Industrial Control Power Supply
- Model #: 753525957594
- Item #: 9SIVB8UKAA8986
- Return Policy: Magicpower Return Policy
Refurbished: For H3C ADP36-52AP EWPAM1POE5 Single Port Gigabit POE Power Supply ...
- Type: Power Supply
- Model #: ADP36-52AP
- Item #: 9SIVSY0KUS4001
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for R750XS R650 R6525//R7525 800W Server Power Supply MGPPC
- Model #: 716837088028
- Item #: 9SIVB8UKX59821
- Return Policy: Magicpower Return Policy
Refurbished: 1U H128 H128C H129 270W Switching Power Supply SPI270LE
- Model #: 753525942200
- Item #: 9SIVSY0KUT1367
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1U 400W GW-EPS400W Server Power Supply
- Model #: 722954732478
- Item #: 9SIVB8UKAA5871
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 32005-000 SX-ACPWR-SYS Power Rectifier Module
- Model #: 792597719020
- Item #: 9SIVRWKKXD7353
- Return Policy: Nytke team Return Policy
Refurbished: For MODEL7001485-J000 492295-002 23-0000092-02 Power Supply
- Model #: 726727725995
- Item #: 9SIVRWKKXA2690
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 8100 8910 8700 8900 460W Switching Power Supply 0WC1T4 ...
- Model #: 744623316307
- Item #: 9SIVB8UKD46500
- Return Policy: Magicpower Return Policy
Refurbished: 390 790 990 3010 7010 9010 240W Power Supply D240AS-00 AC240ES-00 ...
- Model #: 753525935325
- Item #: 9SIVB8UKA99334
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 757.6W YGEAO758AM YGEA0758AM-6R01S10 industrial power supply
- Model #: 716837086086
- Item #: 9SIVB8UKX58944
- Return Policy: Magicpower Return Policy
Refurbished: For ML120G7 Server Power 644671-001 625809-002 509006-002 400
- Model #: 726727730166
- Item #: 9SIVRWKKXA3167
- Return Policy: Nytke team Return Policy
Refurbished: LDC15F-2 Original Disassembly Switching Power Supply 5V/3A
- Model #: 753525956382
- Item #: 9SIVB8UKAA8843
- Return Policy: Magicpower Return Policy
Refurbished: FH-XD301MYR-1 300W Desktop Computer Power Supply
- Model #: 722954732522
- Item #: 9SIVSYTKUU8381
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1PCS for MKP451C Module 28V 12.5A
- Model #: 792597723515
- Item #: 9SIVRWKKXD8769
- Return Policy: Nytke team Return Policy
Refurbished: For R210 Server Power L250E-S0 N250E-S0 V38RM C627N
- Model #: 726727774627
- Item #: 9SIVRWKKXA4208
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R4815G1 power module 48V15A 220V to 48V power supply
- Model #: 716837094821
- Item #: 9SIVB8UKX62279
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Used On WS-C3850 Series Switches 341-0563-01 A0 440W ...
- Model #: 753525984941
- Item #: 9SIVB8UKAA9170
- 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.
