Power Supplies - Showing 2329 - 2352 of 18293 Products
Refurbished: 3000W Power Supply PWS-3K01A-BR
- Model #: 703454715567
- Item #: 9SIVB8UKAJ5973
- Return Policy: Magicpower Return Policy
Refurbished: For LAMBDA 12V 100W 8.5A AC100-120V Power Supply For HK100A-12
- Model #: 753525990119
- Item #: 9SIVB8UKAA7822
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP500-501UN 500W 1U server power supply, industrial control ...
- Model #: 792597717255
- Item #: 9SIVRWKKXD6843
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for DPS-500LB A AF500B00438 300-2166 J4200 500W AC Power Supply
- Model #: 716837098256
- Item #: 9SIVB8UKX63080
- Return Policy: Magicpower Return Policy
Refurbished: 24V2.5A 60W LED Power Supply H60W-SD-24
- Model #: 753525941807
- Item #: 9SIVSYTKUV2013
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1PCS for EFRP-300 Power Supply Module 300W Power Supply EFRP-300
- Model #: 792597709120
- Item #: 9SIVRWKKXD3972
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 250W Power Supply EPR-251
- Model #: 759950246944
- Item #: 9SIVB8UKDA9458
- Return Policy: Magicpower Return Policy
Refurbished: M3000 SPARC server power supply CA01022-0720 300-2193
- Model #: 703454721087
- Item #: 9SIVB8UKAJ6587
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for AUP-X-350(V4) V4.0 350W power supply
- Model #: 792597984688
- Item #: 9SIVB8UKX57199
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PDC150WA Communication Power Module
- Model #: 792597718030
- Item #: 9SIVRWKKXD7007
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 320W Power Supply PA-2321-1H
- Model #: 759950245572
- Item #: 9SIVB8UKDA9312
- Return Policy: Magicpower Return Policy
Refurbished: For Industrial Power Module MRT-6320P-R
- Model #: 703454719121
- Item #: 9SIVB8UKAJ6394
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for MR483000UH-ES Switching Power Supply Module 48V50A
- Model #: 716837094906
- Item #: 9SIVB8UKX62263
- Return Policy: Magicpower Return Policy
Refurbished: B320 B340 B545 B550 B750 8Pin 250W Power Supply HKF2502-3A ...
- Model #: 753525944952
- Item #: 9SIVB8UKA99576
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for laser power supply CK-48V50A CO2POWER 48V50A ...
- Model #: 716837095279
- Item #: 9SIVB8UKX62434
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for M470 Power Supply D700A0 S26113-E536-V70-01
- Model #: 716837085157
- Item #: 9SIVB8UKX58437
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Switching Power Supply For TYCO 300-1852 V215 V245 V445 X4200 ...
- Model #: 759950241680
- Item #: 9SIVB8UKDA8721
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For Power-one 250W ZT6303 CPA 250-4530S181
- Model #: 759950241857
- Item #: 9SIVB8UKDA8741
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ITX 150W Switching Power Supply FSP150-50FGNBI
- Model #: 744623311555
- Item #: 9SIVB8UKD12236
- Return Policy: Magicpower Return Policy
Refurbished: P590/P595 I/O DCA Power Supply 15R6710 44P4672 45D3567
- Model #: 722954736636
- Item #: 9SIVB8UKAA6294
- Return Policy: Magicpower Return Policy
Refurbished: 200W Power Supply PC12U-200P-X2SV
- Model #: 753525943580
- Item #: 9SIVB8UKAA5293
- Return Policy: Magicpower Return Policy
Refurbished: Communication Power Module R48-3000A3 3000W
- Model #: 724780183585
- Item #: 9SIVT8HKWF3075
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO 450W Power Supply F1U450WPSU
- Model #: 759950248924
- Item #: 9SIVB8UKDF9546
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply HK280-73PP PA- 2181-2 FSP180-20TLA PCJ010
- Model #: 716837089117
- Item #: 9SIVB8UKX60294
- 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.
