Power Supplies - Showing 2353 - 2376 of 17942 Products
Refurbished: 1Pcs for OptiPlex GX520 GX620MT PC P8407 N230P-00
- Model #: 792597984183
- Item #: 9SIVB8UKX57095
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Z420 400W Switching Power Supply DPS-400AB-13B ...
- Model #: 744623302287
- Item #: 9SIVB8UKCV8197
- Return Policy: Magicpower Return Policy
Refurbished: For EFRP-465 460W Disk Array, Storage Redundant Power Supply 1pcs
- Model #: 726727731279
- Item #: 9SIVRWKKXA3366
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FS1002 74-9538-01 PWR-WAVE-450W 800-36804-01 A0 Power ...
- Model #: 792597711857
- Item #: 9SIVRWKKXD4657
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Silent Switching Power Supply Rated 300W Pe ak 400W Power ...
- Model #: 744623315140
- Item #: 9SIVB8UKD21928
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP350-70PFL industrial computer power supply FSP460-70PFL
- Model #: 792597713547
- Item #: 9SIVRWKKXD4929
- Return Policy: Nytke team Return Policy
Refurbished: For 0T7KFK 0MHM5F 2C7NK 0MXCJ5 SCv3020 SC5020 SC7020 1485W Power ...
- Model #: 726727821499
- Item #: 9SIVRWKKXB1607
- Return Policy: Nytke team Return Policy
Refurbished: For FSP360-20UCBB
- Model #: 752804575078
- Item #: 9SIVRWKKXB1935
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for RG-S6500-4C Network Machine Power Supply RG-PA700I-F
- Model #: 792597704545
- Item #: 9SIVRWKKXD2545
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply For NVGVNO AES10-24 24V 0.3A100-240VAC
- Model #: 753525988772
- Item #: 9SIVB8UKAA7687
- Return Policy: Magicpower Return Policy
Refurbished: New S8VK-C48024 Switching Power Supply 480W/24V 20A
- Model #: 753525948998
- Item #: 9SIVB8UKAA0055
- Return Policy: Magicpower Return Policy
Refurbished: PE6850 Server Power Supply XJ192 PS-2142-1D ROHS 0XJ192
- Model #: 722954725357
- Item #: 9SIVB8UKAA7215
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For R100020G1
- Model #: 753525989229
- Item #: 9SIVB8UKAA7719
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 600W Switching Power Supply HG2-5600V HG2-5600E HG2-5500V ...
- Model #: 726099222498
- Item #: 9SIVB8UKCU6255
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FLEX 1U 300W Switching Power Supply ACE-A630B ...
- Model #: 744623317571
- Item #: 9SIVB8UKD64617
- Return Policy: Magicpower Return Policy
Refurbished: TSI-EPC-48V-230VAC-NOVA T311730202 Power Supply For ...
- Model #: 753525985290
- Item #: 9SIVB8UKAA9168
- Return Policy: Magicpower Return Policy
Refurbished: CR48-3G 5800W Power Supply Module
- Model #: 753525948332
- Item #: 9SIVB8UKA99984
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for U1A-D10550-DRB 550W 1U Server, Power Module
- Model #: 792597984817
- Item #: 9SIVB8UKX57202
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA 24V5A 120W Power Supply ...
- Model #: 759950244223
- Item #: 9SIVB8UKDA9128
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-400AB-12D Industrial 1U Power Supply 400W
- Model #: 722954727252
- Item #: 9SIVB8UKAA7429
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module GERM4810-01VA
- Model #: 722954733116
- Item #: 9SIVT8HKWF3243
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO DCJ3883-01P 34-0849-01 WS9C50088 388W
- Model #: 745635673518
- Item #: 9SIVB8UKD64753
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W For CCL400PS12 CCL400PS
- Model #: 759950247194
- Item #: 9SIVB8UKDF9399
- Return Policy: Magicpower Return Policy
Refurbished: 280W Power Supply, 796347-001 796417-001 PCE016, 6PIN Interface
- Model #: 722954722974
- Item #: 9SIVB8UKAA6957
- 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.
