Power Supplies - Showing 2065 - 2088 of 17935 Products
Refurbished: 24Pin*2 650W Power Supply PS-4651-1ZT
- Model #: 753525946833
- Item #: 9SIVB8UKA99773
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ST-250UAG-05E 250W server power supply ST-200UAB-05E
- Model #: 716837092032
- Item #: 9SIVB8UKX61344
- Return Policy: Magicpower Return Policy
Refurbished: For PSR320-D Huasan H3C S7502E DC Power Module PSR320-D
- Model #: 722954723629
- Item #: 9SIVSY0KUU0567
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO 1U 800W Switching Power Supply LL1U800APFC
- Model #: 744623311777
- Item #: 9SIVB8UKD19662
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 200W Switching Power Supply UPF200-AA
- Model #: 744623315782
- Item #: 9SIVB8UKD46444
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO H3C MSR3600 3660 3640 5600 300W Switching Power Supply ...
- Model #: 744623314761
- Item #: 9SIVSY0KUU0241
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: Power Supply 341-0722-01 A0 930W UCSC-PSU2V2-930DC
- Model #: 753525984484
- Item #: 9SIVB8UKAA9133
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO TFX 250W Switching Power Supply FSP250-65GHT
- Model #: 744623306605
- Item #: 9SIVB8UKD06253
- Return Policy: Magicpower Return Policy
Refurbished: For CRPS Kangshu R1CA2122A Monitoring Server Redundant Power Module ...
- Model #: 722954724626
- Item #: 9SIVB8UKAA7122
- Return Policy: Magicpower Return Policy
Refurbished: For Z820 workstation power supply DPS-1125AB A 716646-002 792340-001
- Model #: 792597702596
- Item #: 9SIVRWKKXD2049
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 7040 5040 3650sff small chassis host AC240EM-00 B240AM-01 power ...
- Model #: 792597706020
- Item #: 9SIVRWKKXD2918
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DS5100 DS5300 Power Supply 46C8863 46C8871 TDPS-525AB ...
- Model #: 792597713363
- Item #: 9SIVRWKKXD4858
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PWS-721P-1R Server Redundant Power Supply 720W
- Model #: 716837090663
- Item #: 9SIVB8UKX60850
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R4850G2 R4850N6 48V 50A 3000W Communication Power Supply
- Model #: 792597720491
- Item #: 9SIVRWKKXD7672
- Return Policy: Nytke team Return Policy
Refurbished: DPR48/15-D-DGC ESR-48/15A 53.5V 15A Communication Power Module
- Model #: 753525949452
- Item #: 9SIVT8HKWF2824
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO NAS Small 1U A4 K39 S3 D01 550 1650 GTX1050 Rated 250W Peak ...
- Model #: 744623313382
- Item #: 9SIVB8UKD21740
- Return Policy: Magicpower Return Policy
Refurbished: JWS300-24 For TDK-LAMBDA 24V 14A 300W Switching Power Supply Wide ...
- Model #: 753525947496
- Item #: 9SIVB8UKA99897
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SMU02B SMU02B1 SMU02C switching power supply monitoring
- Model #: 716837093374
- Item #: 9SIVB8UKX61681
- Return Policy: Magicpower Return Policy
Refurbished: power supply DD2200 VNX5200 power supply 071-000-597-01 ...
- Model #: 703454721285
- Item #: 9SIVB8UKAJ6574
- Return Policy: Magicpower Return Policy
Refurbished: For NAS RN4220 Server Power Supply 550W DPS-550LB E
- Model #: 722954725951
- Item #: 9SIVB8UKAA7259
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 550W power supply U1A-P10550-DRB U1A-BATTERY ...
- Model #: 792597714476
- Item #: 9SIVRWKKXD5835
- Return Policy: Nytke team Return Policy
Refurbished: Brocade 48000 1000W Switching Power Supply DPS-1001AB-1 EM 23-0200006 ...
- Model #: 753525941937
- Item #: 9SIVB8UKAA5096
- Return Policy: Magicpower Return Policy
Refurbished: Industrial Medical Equipment Power Supply 12V/1.67A For CONDOR ...
- Model #: 724780778958
- Item #: 9SIVB8UKAA6666
- Return Policy: Magicpower Return Policy
Refurbished: For UCSC-PSU-650W V02 341-0490-02 DPS-650AB-2 A Power Supply
- Model #: 726727734300
- Item #: 9SIVRWKKXA4071
- 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.
