Power Supplies - Showing 2017 - 2040 of 17941 Products
Refurbished: KHACHIMO 5406zl switch power supply 875W J8712A DCJ9002-01P ...
- Model #: 745635674027
- Item #: 9SIVB8UKD64810
- Return Policy: Magicpower Return Policy
Refurbished: 2748W Power Supply DPS-2500CB A 7001581-J000 7001581-J002 69Y5840 ...
- Model #: 753525946918
- Item #: 9SIVSY0KUU8619
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For 8204-E8A P6 550 Minicomputers 1692W Power Supply 44V7292 44V4951 ...
- Model #: 792597703289
- Item #: 9SIVRWKKXD2262
- Return Policy: Nytke team Return Policy
Refurbished: Power Switching Power Supply For Weidmuller 2580240000 PRO INSTA 60W ...
- Model #: 753525933475
- Item #: 9SIVB8UKA99184
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DL380G5 Power Supply DPS-800GB A HSTNS-PR05 403781-001 ...
- Model #: 792597705528
- Item #: 9SIVRWKKXD2719
- Return Policy: Nytke team Return Policy
Refurbished: For SWS600L-24 DC power supply 600W 24V medical power supply
- Model #: 792597703630
- Item #: 9SIVRWKKXD2308
- Return Policy: Nytke team Return Policy
Refurbished: For 760 780 960 980DT medium chassis power supply, small 24-pin ...
- Model #: 726727729597
- Item #: 9SIVRWKKXA3069
- Return Policy: Nytke team Return Policy
Refurbished: For Communication Power Module GYA150A-220S12C
- Model #: 722954726323
- Item #: 9SIVT8HKWF3251
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO 300W Power Supply MSP300-5.0 MCP300WM-4.5
- Model #: 759950239939
- Item #: 9SIVB8UKDA0348
- Return Policy: Magicpower Return Policy
Refurbished: 1U 450W Power Supply YZ-6451U
- Model #: 753525943610
- Item #: 9SIVB8UKAA5306
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2U 600W Switching Power Supply ENH-2160-1
- Model #: 744623310879
- Item #: 9SIVB8UKD12118
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for X306 Server 300W 26K4106 23K4874 API3FS26 Power Supply, Module
- Model #: 726099252297
- Item #: 9SIVRWKKXD1619
- Return Policy: Nytke team Return Policy
Refurbished: For Workstation Power Supply Z4 G4 DPS-750AB-36 A 851382-001 ...
- Model #: 753525956917
- Item #: 9SIVB8UKAA8906
- Return Policy: Magicpower Return Policy
Refurbished: For 2BC7 P780 46K5854 46k5860 46k5858 VRM-PR0C-CJ
- Model #: 726727820560
- Item #: 9SIVRWKKXB1501
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply SC1420 670 AA23390 0K2242 K2242 NPS-650AB A 650W
- Model #: 753525956740
- Item #: 9SIVB8UKAA8936
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO M75 91 70E 90P V220S 530 545 240W Switching Power Supply ...
- Model #: 744623301136
- Item #: 9SIVB8UKCV8127
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Almost New Original Power Supply CA05951-8730
- Model #: 759950247828
- Item #: 9SIVB8UKDF9454
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PWS-801-1R 800W server power supply
- Model #: 792597723140
- Item #: 9SIVRWKKXD8639
- Return Policy: Nytke team Return Policy
Refurbished: FSP 1U 400W Switching Power Supply FSP400-70LQ
- Model #: 753525946444
- Item #: 9SIVB8UKA99720
- Return Policy: Magicpower Return Policy
Refurbished: 450W Power Supply 450A-SAI1 450A-SAII 450A-SA11
- Model #: 703454715765
- Item #: 9SIVB8UKAJ5934
- Return Policy: Magicpower Return Policy
Refurbished: For FSP250-50PLE Small 1U Flex Mini Itx NAS Power Supply 250W
- Model #: 722954727207
- Item #: 9SIVB8UKAA7410
- Return Policy: Magicpower Return Policy
Refurbished: B320I B325 B520E B340 750 10088 HKF2502-3A Power Supply 250W
- Model #: 722954726828
- Item #: 9SIVB8UKAA7359
- Return Policy: Magicpower Return Policy
Refurbished: 600G3 SFF Power Supply PCC005 901764-004 901765-001 180w
- Model #: 722954733871
- Item #: 9SIVB8UKAA5981
- Return Policy: Magicpower Return Policy
Refurbished: Dell PowerEdge R310 350W Non-Redundant Power Supply 0R109K R109K
- Model #: R109K, 0R109K, CN-0R109K
- Item #: 9SIVG1JK7Z2488
- Return Policy: Fastparts 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.
