Power Supplies - Showing 1921 - 1944 of 17990 Products
Refurbished: For 02311TLF RH1288H 2288H V5 Server 900W Power Module PAC900S12-BE
- Model #: 722954723360
- Item #: 9SIVB8UKAA7012
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO NETRA210 320W Power Supply A200 300-1736-03
- Model #: 759950240614
- Item #: 9SIVB8UKDA0374
- Return Policy: Magicpower Return Policy
Refurbished: DPS-750AB-21 A PS-2751-3L-LF 03T8616 12V60A 750W Power Supply
- Model #: 722954721090
- Item #: 9SIVB8UKAA6756
- Return Policy: Magicpower Return Policy
Refurbished: RH5885V2 power supply EPW2000-12A EPW3000-12A 02310KEU
- Model #: 722954988813
- Item #: 9SIVB8UKAA6574
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FSP 250W Power Supply FSP250-60PLC
- Model #: 744623312620
- Item #: 9SIVB8UKD19547
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply MSP1698 0014-00-0225
- Model #: 759950243059
- Item #: 9SIVB8UKDA8929
- Return Policy: Magicpower Return Policy
Refurbished: 665W Switching Power Supply DPS-650EB A DPS-650EB B
- Model #: 753525946123
- Item #: 9SIVSY0KUU7710
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: H3C LSTM2PSRA AC Power Module - 2000W
- Model #: 722954733703
- Item #: 9SIVSY0KUT5088
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for HAC250P-490(E) CPCI Power Supply HAC250P-490(E)
- Model #: 792597985548
- Item #: 9SIVB8UKX57254
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2960G-24/48TC 3560G-24TS 3750G-24TS-S For 341-0098-02 ...
- Model #: 759950246036
- Item #: 9SIVB8UKDA9346
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ACE-4520C ACE-A225A-R11 ACE-4520C-RS ACE-815T ACE-815A ...
- Model #: 716837087977
- Item #: 9SIVB8UKX59802
- Return Policy: Magicpower Return Policy
Refurbished: For D5050 H5000 H5050 H5005 H5055 F5005r53 F5050r58 power supply
- Model #: 726727732283
- Item #: 9SIVRWKKXA3551
- Return Policy: Nytke team Return Policy
Refurbished: PowerEdge PE2650 Server Power Supply DPS-500CBA J1540
- Model #: 722954731013
- Item #: 9SIVB8UKAA5686
- Return Policy: Magicpower Return Policy
Refurbished: I610-G10 500W Power Supply PWS-504D-240
- Model #: 753525937244
- Item #: 9SIVB8UKA99554
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V Power Module PVSE 400/24-40 PVSE 400 24-40
- Model #: 759950242779
- Item #: 9SIVB8UKDA8830
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for C3KX-PWR-350WAC 3560X 3750X switching power supply ...
- Model #: 792597709441
- Item #: 9SIVRWKKXD3998
- Return Policy: Nytke team Return Policy
Refurbished: For 071-000-501 071-000-493 1950W AC/DC Power Supply DMX
- Model #: 752804573128
- Item #: 9SIVRWKKXB1658
- Return Policy: Nytke team Return Policy
Refurbished: T5400 T5500 875W Workstation Power Supply H875E-00 N875E-00 J556T
- Model #: 722954733710
- Item #: 9SIVB8UKAA5970
- Return Policy: Magicpower Return Policy
Refurbished: For 6290 H70 power supply 09P2535 750W
- Model #: 726727728378
- Item #: 9SIVRWKKXA2714
- Return Policy: Nytke team Return Policy
Refurbished: For T740 55E server power supply, AMI PWS-1K41P-1R 1400W
- Model #: 726727724110
- Item #: 9SIVRWKKXA2474
- Return Policy: Nytke team Return Policy
Refurbished: For 3292488-A HDS VSP 5500H DKC910I-CBX ISWPS card
- Model #: 703454721131
- Item #: 9SIVB8UKAJ6611
- Return Policy: Magicpower Return Policy
Refurbished: For BDP DZY-48/15H Communication Power Monitoring Module
- Model #: 753525988031
- Item #: 9SIVT8HKWF3043
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: DPS-300NB A DPS-300NB B Communication Power Supply 275W
- Model #: 722954730221
- Item #: 9SIVB8UKAA5621
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for MPI-925A Industrial Computer Server Industrial Power Supply
- Model #: 792597715954
- Item #: 9SIVRWKKXD6414
- 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.
