Power Supplies - Showing 2353 - 2376 of 18222 Products
Refurbished: For THERMO EOS Switching Power Supply LFWLT150-1003-K
- Model #: 722954722547
- Item #: 9SIVB8UKAA6889
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply 1600W DS1600SPE-3
- Model #: 753525985429
- Item #: 9SIVB8UKAA9212
- Return Policy: Magicpower Return Policy
Refurbished: For EFAP-S250 1U power supply EFAP-M251 power supply
- Model #: 726727733143
- Item #: 9SIVRWKKXA3682
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 390 790 990MT Power supply H265AM-00 L265AM-00 AC275AM-00 ...
- Model #: 716837096290
- Item #: 9SIVB8UKX62711
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply 3Y 350W Power Supply YM-6351N YM-6351NAR
- Model #: 759950243905
- Item #: 9SIVB8UKDA9090
- Return Policy: Magicpower Return Policy
Refurbished: HWS150-12/TG HWS150-12 For TDK-LAMBDA 12V 13A Switching Power Supply
- Model #: 724780182847
- Item #: 9SIVB8UKA98931
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For EVOC ATX 810 820 250W Switching Power Supply PS-7270F ...
- Model #: 744623301211
- Item #: 9SIVB8UKCV8109
- Return Policy: Magicpower Return Policy
Refurbished: For TDK-Lambda HWS1500-36/BT Switching Power Supply Dual Current ...
- Model #: 722954729010
- Item #: 9SIVB8UKAA5484
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Module For HD11010-5 ER11010/S
- Model #: 753525989854
- Item #: 9SIVB8UKAA7777
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 03058981 10GbFE 5800 V5 10GB 4 Ports
- Model #: 792597708765
- Item #: 9SIVRWKKXD3946
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 24V 100W For LEP100F LEP100F-24
- Model #: 759950247514
- Item #: 9SIVB8UKDF9381
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-150AB-8 A 1U monitoring POE host hard disk recorder switching ...
- Model #: 792597725793
- Item #: 9SIVRWKKXD9478
- Return Policy: Nytke team Return Policy
Refurbished: For HC SA7506-S Switch PSR650-3 Power Supply E Adapter LSQH3CM1PWRSPA ...
- Model #: 722954728037
- Item #: 9SIVB8UKAA7450
- Return Policy: Magicpower Return Policy
Refurbished: For M6000 Router Power Module PPC34 A008
- Model #: 726099253331
- Item #: 9SIVRWKKXD1839
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for network power supply DS850-3 power module 3.3V
- Model #: 792597727049
- Item #: 9SIVB8UKX32605
- Return Policy: Magicpower Return Policy
Refurbished: For SER75020 400-750V/15KW
- Model #: 752804578888
- Item #: 9SIVRWKKXB2313
- Return Policy: Nytke team Return Policy
Refurbished: FP2 48V 3KW FRONT END RECT HE 380875 Original For Eltek Power Supply ...
- Model #: 722954737404
- Item #: 9SIVB8UKAA6363
- 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: KHACHIMO Power Supply For EMC CX3-80 1200W For 071-000-460 ...
- Model #: 759950247880
- Item #: 9SIVB8UKDF9427
- Return Policy: Magicpower Return Policy
Refurbished: For A1WF2DC490 430W ISTOR Power Supply
- Model #: 726727730241
- Item #: 9SIVRWKKXA3266
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FSP270-60LE 300W 1U Power Supply
- Model #: 792597706273
- Item #: 9SIVRWKKXD3241
- Return Policy: Nytke team Return Policy
Refurbished: For DS-C48S-300AC 300W DS-C9148S-K9
- Model #: 753525957686
- Item #: 9SIVB8UKAA9017
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply for Nipron ePCSA-500P ePCSA-500P-X2S 500W
- Model #: 753525985559
- Item #: 9SIVB8UKAA9201
- Return Policy: Magicpower Return Policy
Refurbished: For FSP450-60GHS SFX Cash Register Temperature Control ITX Small Power ...
- Model #: 722954728679
- Item #: 9SIVB8UKAA5441
- 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.
