Power Supplies - Showing 2329 - 2352 of 18339 Products
Refurbished: For 3Y 2U Power Supply YH-5301E
- Type: ATX
- Model #: 703454737644
- Item #: 9SIVSY0KUU2273
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO 1800W Power Supply UMP16T-SKY-S2E-S2Q-S2Q-01 ...
- Model #: 759950242182
- Item #: 9SIVB8UKDA8778
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 48/2000 HE 241115.105 53.5V37.4A Rectifier Module
- Model #: 792597717842
- Item #: 9SIVRWKKXD7039
- Return Policy: Nytke team Return Policy
Refurbished: RM1848G AC LED48V30A Communication Power Supply Inverter ...
- Model #: 753525987485
- Item #: 9SIVT8HKWF2608
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For GW-M250HSDA GW-M160HSDA cashier server power supply
- Model #: 752804576648
- Item #: 9SIVRWKKXB2103
- Return Policy: Nytke team Return Policy
Refurbished: For Z820 Power Supply 623196-001 632914 DPS-1125AB 716646-00
- Model #: 726099253836
- Item #: 9SIVRWKKXD1934
- Return Policy: Nytke team Return Policy
Refurbished: S26113-E448-V30 For Astec AA21720 250W ATX 20-PIN Switching Power Suppl
- Model #: 753525949919
- Item #: 9SIVB8UKAA0141
- Return Policy: Magicpower Return Policy
Refurbished: For Z8G4 Power Supply 851384-001 851385-001 DPS-1125BB 1450W 1700W
- Model #: 792597702923
- Item #: 9SIVRWKKXD2215
- Return Policy: Nytke team Return Policy
Refurbished: For 00V7129 00V7130 DS3500 DS3512 45234-06
- Model #: 726727776652
- Item #: 9SIVRWKKXA7168
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 250W Power Supply FY9H3 6MVJH X3KJ8 3MV8H HY6D2 PDF9N ...
- Model #: 744623299396
- Item #: 9SIVB8UKCU6592
- Return Policy: Magicpower Return Policy
Refurbished: 627W Power Supply 700-015147-0000 81-00000154-00-01
- Model #: 753525936384
- Item #: 9SIVB8UKA99446
- Return Policy: Magicpower Return Policy
Refurbished: For YM-2681HGR Server YM-2681H Redundant Power Module 700W
- Model #: 722954723735
- Item #: 9SIVB8UKAA7057
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for T430 server power supply T430 R530 450W 40GDF H3DKF with cable ...
- Model #: 792597727735
- Item #: 9SIVB8UKX32791
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 14Pin 280W Power Supply HK380-16FP PCB033 PCB005 ...
- Model #: 744623312194
- Item #: 9SIVB8UKD19672
- Return Policy: Magicpower Return Policy
Refurbished: For Linghua cPS-H325/AC HAC250P-490 (E) Power Module
- Model #: 722954722059
- Item #: 9SIVSY0KUS0330
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for BEA-750H BEA-740 Industrial Power Supply 500W
- Model #: 716837088011
- Item #: 9SIVB8UKX59817
- Return Policy: Magicpower Return Policy
Refurbished: R100-15 Original Disassembly Switching Power Supply 15V/7A
- Model #: 753525987652
- Item #: 9SIVB8UKAA8752
- Return Policy: Magicpower Return Policy
Refurbished: R2W-6500P-R Redundant Power Module 500W
- Model #: 722954721113
- Item #: 9SIVB8UKAA6764
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Module Flex PKU5513EPI
- Model #: 745635675345
- Item #: 9SIVB8UKDA0301
- Return Policy: Magicpower Return Policy
Refurbished: K100A-24 Original Disassembly Switching Power Supply 24V/4.5A
- Model #: 724780778057
- Item #: 9SIVB8UKAA7588
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for G1W-3760V Server Redundant Power Module 760W G1W2-5760V3V
- Model #: 792597985784
- Item #: 9SIVB8UKX57398
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply S8FS-C35048 For 350W 48V AC100240V
- Model #: 753525992298
- Item #: 9SIVB8UKAA8229
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS power module for switching PSR2000-ACV
- Model #: 792597723546
- Item #: 9SIVRWKKXD8774
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for FP2 48V 3KW FRPNT END RECT HE 380875 62.5A Communication Power ...
- Model #: 792597719600
- Item #: 9SIVRWKKXD7482
- Return Policy: Nytke team 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.
