Power Supplies - Showing 2185 - 2208 of 17930 Products
Refurbished: R48-3500E4 48V/3500W For Vertiv High-efficiency Communication Power ...
- Model #: 753525955682
- Item #: 9SIVT8HKWF2639
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1PCS for PA-2521-1H switching power supply PSL520-AD
- Model #: 792597715022
- Item #: 9SIVRWKKXD6038
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for P2H-5500V P2H-5400V P2F-5400V P2F-5500V Industrial Power ...
- Model #: 792597709458
- Item #: 9SIVRWKKXD4013
- Return Policy: Nytke team Return Policy
Refurbished: FPS-S-2000DDL00 DC Conversion Power Supply 12V 167A 2000W
- Model #: 724780183394
- Item #: 9SIVB8UKA98999
- Return Policy: Magicpower Return Policy
Refurbished: For 500W power supply D500EPM-00 H500EPM-00 H500EGM-00 H460EBM-00
- Model #: 726727732818
- Item #: 9SIVRWKKXA3518
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For Netapp FAS2040 FAST2020 675W Switching Power Supply ...
- Model #: 726099222986
- Item #: 9SIVB8UKCU6300
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3020 7020 9020MT desktop power supply HU365EM-00 D365EM 500W ...
- Model #: 792597982271
- Item #: 9SIVB8UKX56677
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Module For HD11010-5 ER11010/S
- Model #: 753525989854
- Item #: 9SIVB8UKAA7777
- Return Policy: Magicpower Return Policy
Refurbished: For CommScope FLXA2191A P1A-N10190-S-F2 module
- Model #: 703454722282
- Item #: 9SIVB8UKAJ6688
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R2W-6500P-R 500W Power Supply B010840002
- Model #: 726099252099
- Item #: 9SIVRWKKXD1625
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Monitoring Module Power Supply EPMU01
- Model #: 759950243929
- Item #: 9SIVB8UKDA9098
- Return Policy: Magicpower Return Policy
Refurbished: 241115.200 FLATPACK2 24V DC Output 26.7V 75A For Eltek Communication ...
- Type: ATX
- Model #: 703454923160
- Item #: 9SIVT8HKWF3252
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1PCS for FSP180-50MP FELX Small 1U Power Supply, Server Power Supply
- Model #: 792597715701
- Item #: 9SIVRWKKXD6385
- Return Policy: Nytke team Return Policy
Refurbished: 400W Power Supply PWR-4430-AC 341-0653-01
- Model #: 753525987799
- Item #: 9SIVB8UKAA8777
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 300-2186-02 T5220 T5440 X4450 DC 660W
- Model #: 792597713400
- Item #: 9SIVRWKKXD4903
- Return Policy: Nytke team Return Policy
Refurbished: 510S 700-24AGR 280G2 400G4 180W PC Power Supply PA-1181-7 PCH018 ...
- Model #: 753525935592
- Item #: 9SIVB8UKA99386
- Return Policy: Magicpower Return Policy
Refurbished: For Lineage Power Communication Module CP1800AC52-H Switch Power ...
- Model #: 722954723087
- Item #: 9SIVT8HKWF2620
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1pcs for P5 P7 P8 Workstation 1000W 1400W Power Supply 5P50V03207 ...
- Model #: 716837083672
- Item #: 9SIVB8UKX57575
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply FSP300-601U Industrial Personal Computer 300W
- Model #: 703454717424
- Item #: 9SIVB8UKAJ6144
- Return Policy: Magicpower Return Policy
Refurbished: HRS300-9000 HRS300-9000B Efficiency Communication Power Module
- Model #: 753525957105
- Item #: 9SIVT8HKWF2618
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1PCS for YM-2461A YM-2461AA03R AS520E-M1 460W storage power supply
- Model #: 792597709816
- Item #: 9SIVRWKKXD4147
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO TFX 350W Switching Power Supply SS-350TGW
- Model #: 744623298467
- Item #: 9SIVB8UKCU6459
- Return Policy: Magicpower Return Policy
Refurbished: For 078-000-192-00 078-000-155 XT380/480/680
- Model #: 726727821369
- Item #: 9SIVRWKKXB1566
- Return Policy: Nytke team Return Policy
Refurbished: For X3250M3 351W server power supply 49Y4661 49Y4663
- Model #: 726727730531
- Item #: 9SIVRWKKXA3175
- 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.
