Power Supplies - Showing 1897 - 1920 of 17940 Products
Refurbished: For S6502 switching power supply PSR300-D PN: CP-1091R2
- Model #: 726727817805
- Item #: 9SIVRWKKXB1196
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO CPRS 650W Switching Power Supply DPS-650AB-16 S ...
- Model #: 744623310671
- Item #: 9SIVB8UKD12086
- Return Policy: Magicpower Return Policy
Refurbished: 400 600 800 G1 G2 SFF Power Supply D14-200P1A 901912-002 PCE011
- Model #: 722954987533
- Item #: 9SIVB8UKAA6489
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 350W Switching Power Supply ST-350U-AC
- Model #: 744623305011
- Item #: 9SIVB8UKD01857
- Return Policy: Magicpower Return Policy
Refurbished: For TDI Communication Inverter Power Module LCE15-48-220/H
- Model #: 703454719039
- Item #: 9SIVB8UKAJ6355
- Return Policy: Magicpower Return Policy
Refurbished: ECC500 E151CMUA3 Power Supply For SMU03A
- Model #: 753525990188
- Item #: 9SIVB8UKAA7803
- Return Policy: Magicpower Return Policy
Refurbished: LPS54-M For ASTEC 60W Power Module 15V-4A
- Model #: 724780779122
- Item #: 9SIVB8UKAA6688
- Return Policy: Magicpower Return Policy
Refurbished: 1100W Switching Power Supply PSSF112102A 800563-00-07
- Model #: 753525946161
- Item #: 9SIVB8UKA99709
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y YM-2511D YM-2511DAR Server Power Supply
- Model #: 722954730511
- Item #: 9SIVB8UKAA5636
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for TC4600 Power Supply DS 2000-3 - 002 DS 2000-3 2000W Server Power ...
- Model #: 792597727674
- Item #: 9SIVB8UKX32813
- 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 SNP-Z066-1 Device Power Supply
- Model #: 726727722307
- Item #: 9SIVRWKKXA2270
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 36V 18A 650W For SHP650PS SHP650PS36-EF
- Model #: 759950245282
- Item #: 9SIVB8UKDA9245
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DPS-350AB-24A small 1u industrial computer power supply ...
- Model #: 716837097099
- Item #: 9SIVB8UKX62937
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for ACE-4520CT IPC-250 LWP-F320 EPS-10 ST-400EAF-05F ST-550PWL
- Model #: 716837086901
- Item #: 9SIVB8UKX59196
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply GOSPOWER 52V7.5A 5V8A Power Supply G0496-44012520D
- Model #: 722954989230
- Item #: 9SIVB8UKAJ5581
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply CPS-H325/AC HAC250P-490 (E) CPCI
- Model #: 722954722028
- Item #: 9SIVB8UKAA6833
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO T1500 350W Power Supply PS-6351-2 DPS-360FB A CPB09-001A ...
- Model #: 744623299143
- Item #: 9SIVB8UKCU6589
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For FSP FLEX Small 1U 250W Switching Power Supply FSP250-50GUB
- Model #: 744623315423
- Item #: 9SIVB8UKD46400
- Return Policy: Magicpower Return Policy
Refurbished: For RRG-4514-00 1+1 Redundant Power Module
- Model #: 722954732058
- Item #: 9SIVB8UKAA5806
- Return Policy: Magicpower Return Policy
Refurbished: FSP350-701UJ 350W 1U ATX Industrial Computer Server Power Supply
- Model #: 703454720714
- Item #: 9SIVB8UKAJ6536
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for IPC-810/820 industrial computer power supply PS-7270F ...
- Model #: 716837097181
- Item #: 9SIVB8UKX62931
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for C30 FSP800-90WSE 54Y8904 Power Supply
- Model #: 792597986033
- Item #: 9SIVB8UKX57401
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For FSP -5V 400W Switching Power Supply SPI400A8BB ...
- Model #: 744623314099
- Item #: 9SIVB8UKD21814
- 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.
