Power Supplies - Showing 1945 - 1968 of 17940 Products
Refurbished: PHD3KS54-ND Power Module
- Model #: 722954721335
- Item #: 9SIVB8UKAA6801
- Return Policy: Magicpower Return Policy
Refurbished: C8000 Workstation Power Supply 403011-001 399324-001 DPS-650CB A
- Model #: 722954730696
- Item #: 9SIVB8UKAA5661
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for P5 P7 P8 Workstation 1000W 1400W Power Supply 5P50V03207 ...
- Model #: 716837083672
- Item #: 9SIVB8UKX57575
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 220W Switching Power Supply DSK220M-G
- Model #: 744623306636
- Item #: 9SIVB8UKD06265
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP300-70PFL (SK) Industrial Control Power Supply PN452209057981
- Model #: 716837091110
- Item #: 9SIVB8UKX61063
- Return Policy: Magicpower Return Policy
Refurbished: For 02130985 X6000 RH2485V2 RH5885V3 1200W power supply PS-2222-3H
- Model #: 726727820874
- Item #: 9SIVRWKKXB1498
- Return Policy: Nytke team Return Policy
Refurbished: For LSQM1DC650 H3C PSR650D Power Module 650W
- Model #: 722954729812
- Item #: 9SIVTFFKXZ7537
- Return Policy: Zienroylein Return Policy
Refurbished: 1Pcs for Z230 DPS-400AB-19 A 704427-001 705045 Power supply 400W
- Model #: 792597725984
- Item #: 9SIVRWKKXD9377
- Return Policy: Nytke team Return Policy
Refurbished: PSU For FSP Replace Etasis 9277CPSU-0010 200W Power Supply EFAP-200 ...
- Model #: 753525935035
- Item #: 9SIVB8UKA99314
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3650M4 3630M4 DC 750W Switching Power Supply 7001607-J000 ...
- Model #: 744623313092
- Item #: 9SIVB8UKD21723
- Return Policy: Magicpower Return Policy
Refurbished: 24V 400W Power Supply BES-640C
- Model #: 703454715291
- Item #: 9SIVB8UKAJ5887
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U CPU8Pin*2 500W Power Supply DPS-500AB-5 B ...
- Model #: 744623312958
- Item #: 9SIVB8UKD19603
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RG-S6120 S6510 550W Switching Power Supply GW-CRPS550N2C ...
- Model #: 744623302607
- Item #: 9SIVB8UKCV8278
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FLEX Small 1U Rated 180W Switching Power Supply F-3000L ...
- Model #: 744623314365
- Item #: 9SIVB8UKD21828
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PS-5401-1HA PCE009 796346-001 796416-001 Z240 Workstation ...
- Model #: 792597707096
- Item #: 9SIVRWKKXD3459
- Return Policy: Nytke team Return Policy
Refurbished: YM-2821A 820W Original For Server Redundant Power Supply Module
- Model #: 753525932515
- Item #: 9SIVB8UKA99048
- Return Policy: Magicpower Return Policy
Refurbished: Flatpack2 380V/3000W HE UI 241119.825 Power Module
- Model #: 753525954913
- Item #: 9SIVB8UKAA0285
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for Power Electronics NE100AC24ATEZ 27V 100A 2725w Power Supply ...
- Model #: 792597721573
- Item #: 9SIVRWKKXD8154
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for MR483000UH-ES Switching Power Supply Module 48V50A
- Model #: 716837094906
- Item #: 9SIVB8UKX62263
- Return Policy: Magicpower Return Policy
Refurbished: DL 580G3 580G4 Server Power Supply HSTNS-PA01 406421-001 337867-501
- Model #: 722954735431
- Item #: 9SIVB8UKAA6157
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y YM-2721A YM-2821A Server 2U Power Module 720W
- Model #: 722954728778
- Item #: 9SIVB8UKAA5439
- Return Policy: Magicpower Return Policy
Refurbished: For FSP250-50PLE Small 1U Flex Mini Itx NAS Power Supply 250W
- Model #: 722954728600
- Item #: 9SIVB8UKAA5463
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for S3500 Power Supply PSU-350-AC PSU-350-AC
- Model #: 716837085034
- Item #: 9SIVB8UKX58448
- Return Policy: Magicpower Return Policy
Refurbished: PSF200FP-69 PSF180FP-69
- Type: ATX
- Model #: 703454727591
- Item #: 9SIVSYTKUT5797
- Return Policy: SuZhouLiYuanLiXinBaiHuo 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.
