Power Supplies - Showing 1945 - 1968 of 17933 Products
Refurbished: KHACHIMO 380G9 GEN9 800W Power Supply HSTNS-PL41 720479-B21 ...
- Model #: 744623307008
- Item #: 9SIVB8UKD06362
- Return Policy: Magicpower Return Policy
Refurbished: 80plus Platinum 1288H V5 2288H V5 2488 V5 2488H V5 5885H V5 1500W Power ...
- Model #: 753525945959
- Item #: 9SIVB8UKA99672
- Return Policy: Magicpower Return Policy
Refurbished: For T440 R540 server cold power supply AC450E-S0 D450E-S1 45FD1 HXF7Y
- Model #: 726099254321
- Item #: 9SIVRWKKXD2066
- Return Policy: Nytke team Return Policy
Refurbished: For R48300E3 R48-200A3 2000A3 3000A32900U
- Model #: 703454718322
- Item #: 9SIVB8UKAJ6277
- Return Policy: Magicpower Return Policy
Refurbished: For N2200-PAC-400W-B power supply
- Model #: 752804573777
- Item #: 9SIVRWKKXB1759
- Return Policy: Nytke team Return Policy
Refurbished: SDS120PS12 For XP Industrial Medical Equipment Power Supply 12V/10A
- Model #: 724780779085
- Item #: 9SIVB8UKAA6671
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for X3550M4 3650M5 7001605-J002 94Y8114 94Y8113 Power Supply ...
- Model #: 792597724949
- Item #: 9SIVRWKKXD9257
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for projector, rear projector MSP600 GIN-3600V power supply
- Model #: 792597985739
- Item #: 9SIVB8UKX57377
- Return Policy: Magicpower Return Policy
Refurbished: DL320E G8 Cold Plug Power 748336-101 DPS-250AB-95 A 751909-001
- Model #: 722954734298
- Item #: 9SIVB8UKAA6007
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For VAPEL 3000W Power Supply PSR3000-54A
- Model #: 759950246678
- Item #: 9SIVB8UKDA9405
- Return Policy: Magicpower Return Policy
Refurbished: UCS C240 M3 1200W Power Supply UCSC-PSU2-1200 DPST-1200CB A ...
- Model #: 753525943115
- Item #: 9SIVB8UKAA5257
- Return Policy: Magicpower Return Policy
Refurbished: ZWQ130-5224/A Multiple Output Switching Power Supply
- Model #: 724780182922
- Item #: 9SIVB8UKA98959
- Return Policy: Magicpower Return Policy
Refurbished: Flex HK250-94FP Small 1U POS Power Supply
- Model #: 722954731716
- Item #: 9SIVB8UKAA5771
- Return Policy: Magicpower Return Policy
Refurbished: For MW SD-1000H-48 Single Group Output Converter Power Supply
- Model #: 753525987324
- Item #: 9SIVB8UKAA8764
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AC-DC/DC-AC bi-directional power supply BDP2400DC15 ...
- Model #: 792597721535
- Item #: 9SIVRWKKXD8140
- Return Policy: Nytke team Return Policy
Refurbished: ACE650F 650W AC6-FFFFC-00 Power Supply
- Model #: 724780183271
- Item #: 9SIVB8UKA98956
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for T750 7000 blade 9000K module power supply PS-4851-1 850W
- Model #: 716837092117
- Item #: 9SIVB8UKX61389
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ST-220FUB-05E 220W Small 1U Industrial Computer Equipment ...
- Model #: 726099252433
- Item #: 9SIVRWKKXD1790
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO ML570G2 ML530G2 600W Power Supply 230822-001 231782-001 ...
- Model #: 759950240942
- Item #: 9SIVB8UKDA0450
- Return Policy: Magicpower Return Policy
Refurbished: 3Y 1U 150W Power Supply YM-5501E
- Model #: 753525945607
- Item #: 9SIVB8UKA99630
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U 220W Switching Power Supply P1S-5220V
- Model #: 744623305141
- Item #: 9SIVB8UKD01858
- Return Policy: Magicpower Return Policy
Refurbished: For GW-CRPS550 12V 45A 550W Server Power Supply
- Model #: 703454720103
- Item #: 9SIVB8UKAJ6465
- Return Policy: Magicpower Return Policy
Refurbished: C3K-PWR-750WAC 3560E-48PD/24PD 3750E Switch Power Supply
- Model #: 753525957587
- Item #: 9SIVB8UKAA8982
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SPAFFIV-04G PWR-0199-04/03 For F5 Big-IP 10000 Power Supply
- Model #: 792597726394
- Item #: 9SIVRWKKXD9618
- Return Policy: Nytke team 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.
