Power Supplies - Showing 865 - 888 of 18294 Products
283623-001 HP-Compaq 225 Watt Hot Swap Redundant Power Supply Fo
- Model #: LB0000ASOVQ
- Item #: 9SIVARYH703813
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1 Pc of TPS658620ZQZR Integrated Circuits Battery Management Power Supply 120BGA ...
- Model #: LB09N3JDGS7
- Item #: 9SIVARYH703571
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Genuine Power Supply 250 Watt 20 Pin Atx Zinfandel
- Model #: ps-5251-08
- Item #: 9SIV1W8CYE1066
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[PowerNex] Mean Well RSP-150-13.5 13.5V 11.2A 151.2W Single Output with PFC Function ...
- Model #: LB017U3IMSQ
- Item #: 9SIVARYH6Y5038
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BUCIER 20 Pack LM2596 DC-DC Buck Converter Step Down Variable Volt Regulator Input ...
- Model #: B882
- Item #: 9SIV81TKMN1171
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Mpw2801 Pcps0939 Power Supply Board
- Model #: mpw2801
- Item #: 9SIV1W8AWG0609
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PWS-2K03P-1R Power Supply 2000W Module W/ PFC
- Model #: TGM2-PWS-2K03P-1R
- Item #: 9SIVB99KMX0978
- Return Policy: Compiston Store Return Policy
Power Supply Module 120 Volt A.C. input 12V Output - Third Party
- Model #: 0957-2228
- Item #: 9SIV1W87N60225
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EnGenius 480W Open Frame Power Module
- Model #: LB08VJ7P5D4
- Item #: 9SIVARYH6Z4610
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MEAN WELL LPV-20-12 AC to DC Power Supply, Enclosed LED Single Output, 12V, 1.67 Amp, ...
- Model #: LB004EB98I6
- Item #: 9SIVARYH6Y9830
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Odyson - Power Supply (185W) Replacement for iMac 21.5" A1418 (Late 2012-Mid 2017)
- Model #: SAB01BLR8EY4
- Item #: 9SIVARYK4X1642
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Compaq 386594-001 6.4Gb Ide Fuj
- Model #: 386594-001
- Item #: 9SIV1W87N60693
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Airgoo Addressable RGB PSU Cable, 24 Pin ATX Cable Extension Kit, with Diffused Lighting, ...
- Model #: LB09QK1KYYG
- Item #: 9SIVARYH6Y2533
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SilverStone Technology Strider 850 Watt 80 Plus Platinum Modular PSU 850 Power Supply ...
- Model #: LB09333BYF6
- Item #: 9SIVARYH6W7364
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MW Mean Well DR-4524 24V 2A 45W Single Output Industrial DIN Rail Power Supply
- Model #: LB071VZZQMK
- Item #: 9SIVARYH6Y9455
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Altronix Proprietary Power Supply AL1002ULADA
- Model #: LB0006ZKVRG
- Item #: 9SIVARYH6Z2946
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MW Mean Well RS-50-3.3 3.3V 10A 33W Single Output Switching Power Supply
- Model #: LB005T6GS92
- Item #: 9SIVARYH703788
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Watt Power Supply for Optiplex GX Series Models Wi
- Model #: L255EM-01
- Item #: 9SIV1W8CYE1629
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MEAN WELL SCP-35-12 13.8V 2.6A 35.9W Single Output Switching Power Supply Security ...
- Model #: LB07K2BWBC6
- Item #: 9SIVARYH702531
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Power-One HTAA-16W-AG Power Supply; AC-DC; 5V@2A, 12V@0.4A, -5V@0.4A; 100-264V ...
- Model #: LB005T6GLLW
- Item #: 9SIVARYH6Z0456
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MW Mean Well HLG-150H-48 48V 3.2A 150W Single Output LED Switching Power Supply
- Model #: LB017U48HGM
- Item #: 9SIVARYH6Y6310
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MEAN WELL RSP 1500W Switching Power Supply AC/DC Single Output RSP-1500-12 125A Slim ...
- Model #: KB0D8K91N3V
- Item #: 9SIVARYKD57052
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1800w Mining Power Supply 8 GPU 1800W Modular PSU for Bitcoin Ethereum Miner 110V ...
- Model #: LB095WJ2ZFY
- Item #: 9SIVARYH6X8099
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FOR DELL 300 Watt Compatible Power Supply Replacement Inspiron 518 519 530 531 537 540 ...
- Model #: LB07G5KT8KR
- Item #: 9SIVARYH6W8651
- Return Policy: Nature 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.
