Power Supplies - Showing 2377 - 2400 of 18350 Products
Refurbished: PC PSU For FSP 600W 750W Power Supply FSP600-40MRA(M) YM-2751E
- Model #: 753525935882
- Item #: 9SIVB8UKA99401
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For FSP -5V IPC-610L IPC-610H 300W Switching Power Supply ...
- Model #: 744623315195
- Item #: 9SIVB8UKD21947
- Return Policy: Magicpower Return Policy
Refurbished: For API6PC06-EL 3G 2G 1G 180W Half Cut, Power Supply AP16PC06
- Model #: 752804579953
- Item #: 9SIVRWKKXB2514
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 14 pin power supply HK380-16FP FSP280-40PA HK280-23FP 280W
- Model #: 716837089469
- Item #: 9SIVB8UKX60334
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 14 Pin Desktop Silent Power Supply HK380-16FP FSP280-40EPA ...
- Model #: 792597982967
- Item #: 9SIVB8UKX56768
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Coapower 48V5A 240W Power Supply SYS-240-S48 ...
- Model #: 722954989537
- Item #: 9SIVB8UKAJ5667
- Return Policy: Magicpower Return Policy
Refurbished: Z200 210 680 880 6000 8000 320W Power Supply D12-320P1B PS-4321-9HA ...
- Model #: 753525935530
- Item #: 9SIVB8UKA99359
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS power supply LPS-260W with P8 P9
- Model #: 792597714049
- Item #: 9SIVRWKKXD5577
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for GW-EPS650P GW-EPS550P server power supply
- Model #: 716837090410
- Item #: 9SIVB8UKX60629
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO SS-330GB PFC Desktop Silent Power Supply 80PLUS
- Model #: 745635673761
- Item #: 9SIVB8UKD64805
- Return Policy: Magicpower Return Policy
Refurbished: 71W 5V 10A Power Supply For P50-5
- Model #: 753525989830
- Item #: 9SIVB8UKAA7769
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 7060596 7081064 SPASUNM-10G A239A T5-2 2060W 1030W
- Model #: 716837098089
- Item #: 9SIVB8UKX63067
- Return Policy: Magicpower Return Policy
Refurbished: D650 D850 X4660G Power Supply PA-1181-10AC PA-2251-2AB
- Model #: 703454720592
- Item #: 9SIVB8UKAJ6547
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for EOE12030002 380-1571-01 454342-001 Tape Library Power Supply
- Model #: 716837084686
- Item #: 9SIVB8UKX58064
- Return Policy: Magicpower Return Policy
Refurbished: 350W FSP350-50FCB For Advantech Industrial Computer Power Supply 1U
- Model #: 753525934045
- Item #: 9SIVB8UKA99215
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for EVT250D-12-B-01 Lithium battery contactor 12VDC250A
- Model #: 792597718863
- Item #: 9SIVRWKKXD7203
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 12V 250W Power Supply MVAC250-12F
- Model #: 759950247927
- Item #: 9SIVB8UKDF9444
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 670 SC1420 650W Switching Power Supply N650P-00 NPS-650AB A ...
- Model #: 744623317168
- Item #: 9SIVB8UKD64507
- Return Policy: Magicpower Return Policy
Refurbished: LDC15F-2 Original Disassembly Switching Power Supply 5V/3A
- Model #: 753525956382
- Item #: 9SIVB8UKAA8843
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 250W Switching Power Supply HK353-11UEP
- Model #: 744623304977
- Item #: 9SIVB8UKCW6274
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 250W Switching Power Supply SS-250TFX
- Model #: 744623316727
- Item #: 9SIVB8UKD64474
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply S8FS-G03024C For 30W 24V AC100240V 1.5A ...
- Model #: 753525991581
- Item #: 9SIVB8UKAA8115
- Return Policy: Magicpower Return Policy
Refurbished: 700W Power Supply GW-DSP2U700W
- Model #: 722954989971
- Item #: 9SIVB8UKAJ5741
- Return Policy: Magicpower Return Policy
Refurbished: S7806 PWR-SPA
- Model #: 722954723605
- Item #: 9SIVB8UKAA7014
- 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.
