Power Supplies - Showing 1921 - 1944 of 17993 Products
Refurbished: 1pcs for PSR450-12A S6520X/S6800 450W Power Supply
- Model #: 716837084297
- Item #: 9SIVB8UKX58054
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AEK-3000-48 48V62.5A3000W switching power supply
- Model #: 792597718214
- Item #: 9SIVRWKKXD7190
- Return Policy: Nytke team Return Policy
Refurbished: LFA150F-24-J1 Original Disassembly Switching Power Supply 24V/6.3A
- Model #: 753525956993
- Item #: 9SIVB8UKAA8892
- Return Policy: Magicpower Return Policy
Refurbished: For AJ744A MSA2000 Storage FC Fiber Controller 481319-001
- Model #: 726727817416
- Item #: 9SIVRWKKXB1009
- Return Policy: Nytke team Return Policy
Refurbished: For PAC-150WA Communication Power Module
- Model #: 722954726552
- Item #: 9SIVT8HKWF3258
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO DVR NVR 20Pin SATA*8 250W Switching Power Supply ...
- Model #: 744623299563
- Item #: 9SIVB8UKCU6616
- Return Policy: Magicpower Return Policy
Refurbished: For ARUBR PSU-350-AC DCJ3501-03PLF 350W POE Power Supply
- Model #: 722954722929
- Item #: 9SIVB8UKAA6937
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-802A-1R 800W Ultra Micro Server Power Supply pws-802A-1r
- Model #: 726727817201
- Item #: 9SIVRWKKXB1010
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO ITX FLEX HTPC K39 49 M34 41 99 T34 R47 44 A35 S3 ZS-A4 G5 Small ...
- Model #: 744623302485
- Item #: 9SIVB8UKCV8268
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 851 Industrial Control Power Supply Single 12V 2U 2000W Mining ...
- Model #: 744623312033
- Item #: 9SIVB8UKD19668
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for XPS8930 850W 1000W Power Supply Aurora R5 R6 R7 R8 R9
- Model #: 792597726998
- Item #: 9SIVB8UKX32585
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA AIPHA 1000W Power Supply H10720 ...
- Model #: 759950240645
- Item #: 9SIVB8UKDA0386
- Return Policy: Magicpower Return Policy
Refurbished: 02CTMC 2CTMC T7920 1400W Server Power Supply H1400-EF
- Type: ATX
- Model #: 703454739204
- Item #: 9SIVSY0KUT2627
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: PE1855 PE1955 Server Power Supply RJ574 AHF-2DC-2100W
- Model #: 722954987977
- Item #: 9SIVB8UKAA6520
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Switching Power Supply HK401-11FP HK400-11FP
- Model #: 744623304519
- Item #: 9SIVB8UKCW6227
- Return Policy: Magicpower Return Policy
Refurbished: 1600W Switching Power Supply PSSF162205A J78186-005
- Model #: 753525946703
- Item #: 9SIVB8UKA99725
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-704P-1R PWS-504P-1R PWS-703P-1R PWS-504D-240 Power ...
- Model #: 752804574347
- Item #: 9SIVRWKKXB1879
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 700W Switching Power Supply ATX-0670GA2
- Model #: 744623304601
- Item #: 9SIVB8UKCW6218
- Return Policy: Magicpower Return Policy
Refurbished: 80plus Platinum 1288H V5 2288H V5 2488 V5 2488H V5 5885H V5 1500W Power ...
- Model #: 753525945959
- Item #: 9SIVB8UKA99672
- Return Policy: Magicpower Return Policy
Refurbished: SPS800-512TE-A SPS800-512TF-A D200 775W 840W Power Supply
- Model #: 722954726200
- Item #: 9SIVSY0KUT0397
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For T350 R350 G6X Server Power Module R650FF3 D23019-008
- Model #: 726727817331
- Item #: 9SIVRWKKXB0824
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 3710 3901 Power Supply 240W 865N6 H240EBS-00 AC240EBS-00
- Model #: 716837091608
- Item #: 9SIVB8UKX61154
- Return Policy: Magicpower Return Policy
Refurbished: R420 Server Cold Power Supply DPS-550NB A 0J6J6M DH550E-S0 550w
- Model #: 722954725050
- Item #: 9SIVB8UKAA7145
- Return Policy: Magicpower Return Policy
Refurbished: For LCC600-12U-9401-A1 12V
- Model #: 703454718612
- Item #: 9SIVB8UKAJ6332
- 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.
