Power Supplies - Showing 2281 - 2304 of 17942 Products
Refurbished: For T5810 T7810 685W workstation power supply D685EF-01 F685EF-01 ...
- Model #: 792597702985
- Item #: 9SIVRWKKXD2081
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 3Y Rated 700W Peak 900W Switching Power Supply YM-8701A
- Model #: 744623304243
- Item #: 9SIVB8UKCW6166
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Server Power Supply 1800W 4F3WN D1800E-S0 16th Gen R660 Power ...
- Model #: 792597727025
- Item #: 9SIVB8UKX32597
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-704P-1R PWS-504P-1R PWS-703P-1R PWS-504D-240 Power ...
- Model #: 752804574347
- Item #: 9SIVRWKKXB1879
- Return Policy: Nytke team Return Policy
Refurbished: For N18010 Switch Power RG-PA1600I 1600W
- Model #: 722954721359
- Item #: 9SIVB8UKAA6809
- Return Policy: Magicpower Return Policy
Refurbished: For MAP55-4003 POWER-ONE
- Model #: 726727724288
- Item #: 9SIVRWKKXA2367
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for WOPSA1700 ME170-12A server switching power module
- Model #: 792597724727
- Item #: 9SIVRWKKXD9240
- Return Policy: Nytke team Return Policy
Refurbished: EX-PWR-320-AC 740-020957 320W Power Module EX4200
- Model #: 722954722882
- Item #: 9SIVB8UKAA6920
- Return Policy: Magicpower Return Policy
Refurbished: For TDK-LAMBDA Switching Power Supply SWS1000L-24
- Model #: 752804578895
- Item #: 9SIVRWKKXB2332
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Thinkserver TS440 540 530 450W Power Supply FSA028 03X4373 ...
- Model #: 744623302157
- Item #: 9SIVB8UKCV8242
- Return Policy: Magicpower Return Policy
Refurbished: For YM-2451L DC module power supply 450W
- Model #: 726727722185
- Item #: 9SIVRWKKXA2151
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-800QB A Server Power 856-851445 856-814
- Model #: 726727730456
- Item #: 9SIVRWKKXA3194
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for P720 server power supply 12V130A 1725W 00E7187 7001490-J000
- Model #: 792597706136
- Item #: 9SIVRWKKXD2933
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO NV-175 175W Power Supply NV1-4G5TTH-F
- Model #: 759950246371
- Item #: 9SIVB8UKDA9389
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU 220W Power Supply R1U-2220V R1U2-5220V4H
- Model #: 726099221323
- Item #: 9SIVB8UKCN1236
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-220TB E Recorder Power Supply
- Model #: 752804575979
- Item #: 9SIVRWKKXB2067
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-250AB-24 B 250W NAS Network Equipment Power Supply
- Model #: 726727722772
- Item #: 9SIVRWKKXA2336
- Return Policy: Nytke team Return Policy
Refurbished: For EFRP-463 Server Power Supply 460W
- Model #: 726727723496
- Item #: 9SIVRWKKXA2458
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs power supply for XR11 XR12 XR4000R XR4000Z 4F3WN C6T8M VKY5X
- Model #: 716837093251
- Item #: 9SIVB8UKX61683
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U IPC X79 X99 24Pin+10Pin+8Pin 500W Switching Power Supply ...
- Model #: 744623301655
- Item #: 9SIVB8UKCV8190
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-504P-1R 500W Server Redundant Power Module
- Model #: 724780779375
- Item #: 9SIVB8UKAA6732
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 130W Switching Power Supply GW-D19-130
- Model #: 744623304588
- Item #: 9SIVB8UKCW6209
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for MRW-6350P-R Industrial Control Power Module MRW-6350P
- Model #: 716837097372
- Item #: 9SIVB8UKX62907
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ATX 300W Switching Power Supply ACE-A130-R11 ...
- Model #: 744623314242
- Item #: 9SIVB8UKD21827
- 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.
