Power Supplies - Showing 2041 - 2064 of 17995 Products
Refurbished: For Communication Power Module MPW340-28A-1
- Model #: 722954733697
- Item #: 9SIVT8HKWF3084
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For 3267 3667 3668 3669 Power supply L180AS-02 -03 B200AS-00 H180ES-00
- Model #: 726727732061
- Item #: 9SIVRWKKXA3373
- Return Policy: Nytke team Return Policy
Refurbished: For 48V 30A Power Supply For DZY-48/30H
- Model #: 753525989267
- Item #: 9SIVB8UKAA7737
- Return Policy: Magicpower Return Policy
Refurbished: For PN 3602-01604 Blood Sample Analyzer Power Supply
- Model #: 792597703463
- Item #: 9SIVRWKKXD2261
- Return Policy: Nytke team Return Policy
Refurbished: For 3Y CRPS 1200W Switching Power Supply YM-2122C
- Model #: 753525936186
- Item #: 9SIVB8UKA99416
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for YM-2721E YM-2721EA02R 720W DC Power Supply
- Model #: 792597712205
- Item #: 9SIVRWKKXD4755
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 3Y 530W Switching Power Supply YM-2531B
- Model #: 744623298672
- Item #: 9SIVB8UKCU6448
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for A51 R5 R6 850W power supply
- Model #: 716837085218
- Item #: 9SIVB8UKX58385
- Return Policy: Magicpower Return Policy
Refurbished: For I620r-G server power supply EFRP-S753 module power supply 750W
- Model #: 726727723106
- Item #: 9SIVRWKKXA2299
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply Module For VS1-L7-00(-CE) VS1-L7-00-CE
- Model #: 753525989373
- Item #: 9SIVB8UKAA7732
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSM-8 Monitoring Module
- Model #: 759950242786
- Item #: 9SIVB8UKDA8834
- Return Policy: Magicpower Return Policy
Refurbished: LCA150S-24 For COSEL Original Disassembly Switching Power Supply 24V6.3A ...
- Model #: 753525956108
- Item #: 9SIVB8UKAA8828
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO POE 418W Switching Power Supply DPS-410AB-2 A DPS-410AB-2A
- Model #: 744623316550
- Item #: 9SIVB8UKD46513
- Return Policy: Magicpower Return Policy
Refurbished: 2748W Power Supply DPS-2500CB A 7001581-J000 7001581-J002 69Y5840 ...
- Model #: 753525946529
- Item #: 9SIVSY0KUU7740
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO 3Y H3C S6860 450W Switching Power Supply PSR450-12AHD ...
- Type: ATX
- Model #: 744623309675
- Item #: 9SIVSY0KUV7201
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For RG-PA70I U1A-H10070-DRB S5750V2-28GT4XS-L switching power ...
- Model #: 752804574231
- Item #: 9SIVRWKKXB1758
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for ZXD3000 V5.6 5.0 5.5 3000 Communication Power Module ZXD3000
- Model #: 716837095507
- Item #: 9SIVB8UKX62473
- Return Policy: Magicpower Return Policy
Refurbished: For S210 VNX8000 FS9024 071-000-597-00 875W server power supply
- Model #: 726727817003
- Item #: 9SIVRWKKXB0807
- Return Policy: Nytke team Return Policy
Refurbished: AD800-1D005E AD500-1D005E DD400-5D005E DD500-5D005E 120W Power ...
- Model #: 703454716199
- Item #: 9SIVB8UKAJ6043
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS power supply for video recorder PUI108E-2Z 100W
- Model #: 792597723348
- Item #: 9SIVRWKKXD8787
- Return Policy: Nytke team Return Policy
Refurbished: PCSA-470P-X2S 470W DC Power Supply
- Model #: 724780182595
- Item #: 9SIVB8UKA98927
- Return Policy: Magicpower Return Policy
Refurbished: V245 V445 X4600 M2 950W Switching Power Supply 300-2013-03 SPASUNM-04
- Model #: 753525946970
- Item #: 9SIVB8UKA99770
- Return Policy: Magicpower Return Policy
Refurbished: 280 285 288 400 600 800 G1 G2 G3 4Pin 180W Power Supply 901762-002 ...
- Model #: 753525935493
- Item #: 9SIVB8UKA99392
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for KSF-275F4 8632N, 8664N, 8616N-I 16 Power Supply
- Model #: 716837092285
- Item #: 9SIVB8UKX61357
- 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.
