Power Supplies - Showing 1969 - 1992 of 17947 Products
Refurbished: RKW24-6R5 For TDK-LAMBDA Industrial Medical Equipment Power Supply ...
- Model #: 724780778606
- Item #: 9SIVB8UKAA6626
- Return Policy: Magicpower Return Policy
Refurbished: For LAMBDA AC100-240V 24V 75W Power Supply For ZWS75PF-24/JA ...
- Model #: 753525990096
- Item #: 9SIVB8UKAA7814
- Return Policy: Magicpower Return Policy
Refurbished: MS2520F MS3300 MS3000 450W Power Supply DPS-450KB E
- Model #: 753525942743
- Item #: 9SIVB8UKAA5176
- Return Policy: Magicpower Return Policy
Refurbished: Switch Power Supply PPC33 A012 52-PWR-AC50 500W
- Model #: 703454718315
- Item #: 9SIVB8UKAJ6268
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W Power Supply H47318 Ca400 24D-Mfu 15.5/15.5E ...
- Model #: 759950241093
- Item #: 9SIVSY0KUV8371
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO X3755M3 1100W Switching Power Supply PS-2112-2M 69Y4934 ...
- Model #: 744623312071
- Item #: 9SIVB8UKD19635
- Return Policy: Magicpower Return Policy
Refurbished: For SUN 370-6807 W1100Z W2100Z Workstation Power 550W AcBel API4FS06
- Model #: 722954735271
- Item #: 9SIVB8UKAA6092
- Return Policy: Magicpower Return Policy
Refurbished: For AC-PSR650-A-H3 H3C PSR650-A AC Power Module 650W
- Model #: 722954726903
- Item #: 9SIVSY0KUT0395
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: LDA75F-24 24V3.2A Switching Mode Power Supply
- Model #: 724780181239
- Item #: 9SIVB8UKA98780
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO CPCIAC-3U-300W 900-4002-20 02090028-02 PS-4002
- Model #: 759950247095
- Item #: 9SIVB8UKDA9457
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 1U Rack Power Supply RCP-1000-30 Output 30V32A
- Model #: 792597723416
- Item #: 9SIVRWKKXD8761
- Return Policy: Nytke team Return Policy
Refurbished: Server 750w Power Module RD650 RD550 RD450 DPS-750AB-34 00H
- Model #: 703454719367
- Item #: 9SIVB8UKAJ6393
- Return Policy: Magicpower Return Policy
Refurbished: For 14 Pins, Power Supply FSP500-50ETN Rated 500W
- Model #: 752804579137
- Item #: 9SIVRWKKXB2407
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 460W Switching Power Supply EFRP-465
- Model #: 744623305868
- Item #: 9SIVB8UKD01904
- Return Policy: Magicpower Return Policy
Refurbished: For WIN-TACT WP507F12 1U Power Supply 400W
- Model #: 752804578161
- Item #: 9SIVRWKKXB2243
- Return Policy: Nytke team Return Policy
Refurbished: For PE1800 server power supply 675W p2591
- Model #: 726727728675
- Item #: 9SIVRWKKXA2853
- Return Policy: Nytke team Return Policy
Refurbished: D3000E-S0 Server Power Supply 5PDWG 3000W
- Model #: 722954721540
- Item #: 9SIVSY0KUU1791
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for FSP400-80AGBBP FSP500-80AGBBP FSP600-80AGBBP ...
- Model #: 716837087113
- Item #: 9SIVB8UKX59343
- Return Policy: Magicpower Return Policy
Refurbished: For U1A-G10150-S-A1 12V12.5A Power 150W
- Model #: 752804576297
- Item #: 9SIVRWKKXB2077
- Return Policy: Nytke team Return Policy
Refurbished: DPR48/50-D-DCE Rectifier Communication Monitoring Power Module ...
- Model #: 753525984026
- Item #: 9SIVT8HKWF2830
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: Puli 1U 915 Power Supply P4-350 ATX-300T
- Model #: 753525943078
- Item #: 9SIVB8UKAA5239
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1200W Power Supply HSTNS-PD11 DPS-1200FB A 438202-001 ...
- Model #: 744623300702
- Item #: 9SIVB8UKCU6779
- Return Policy: Magicpower Return Policy
Refurbished: For 550W PA-5181-3A PA-1181-10AC PA-2301-3 D19-300P1A 6 + 4
- Model #: 726727729955
- Item #: 9SIVRWKKXA3103
- Return Policy: Nytke team Return Policy
Refurbished: PWS-865-PQ Workstation Power Supply
- Model #: 724780183325
- Item #: 9SIVSYTKUT2374
- 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.
