Power Supplies - Showing 1921 - 1944 of 17940 Products
Refurbished: For PA-3401-1HA 400W SFF Power Supply 942332-001 War 86 War 99 Host
- Model #: 752804580300
- Item #: 9SIVRWKKXB2509
- Return Policy: Nytke team Return Policy
Refurbished: For 600W Z420 Power Supply DPS-600UB A, 623193-001 632911-001
- Model #: 726099251511
- Item #: 9SIVRWKKXD1512
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Small 1U CP1540 CP5140 CP5141 CP6130 200W Power Supply ...
- Model #: 744623314846
- Item #: 9SIVB8UKD21880
- Return Policy: Magicpower Return Policy
Refurbished: For 341-0042-04 4500-e pwr-c45-1400acv AC aa24280
- Model #: 752804577355
- Item #: 9SIVRWKKXB2205
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs fo 23-0000067-01 2025W 240V 21.2A
- Model #: 716837085195
- Item #: 9SIVB8UKX58369
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply L260EBM-00 L260AM-00 AC260AM-00 H260EBM-00
- Model #: 716837090014
- Item #: 9SIVB8UKX60611
- Return Policy: Magicpower Return Policy
Refurbished: For X3100 M5 Workstation Power Supply 00AL204 00MW244 DPS-430EB A ...
- Model #: 726727815528
- Item #: 9SIVRWKKXB0448
- Return Policy: Nytke team Return Policy
Refurbished: M1R-2600K2 600W Server Redundant Power Module
- Model #: 722954732140
- Item #: 9SIVB8UKAA5795
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO New Power Supply 12V29A 24V14.4A 350W Power Supply ...
- Model #: 759950242847
- Item #: 9SIVB8UKDA8859
- Return Policy: Magicpower Return Policy
Refurbished: 500W Power Supply 865408-B21 865398-001 866729-001
- Model #: 753525949988
- Item #: 9SIVB8UKAA0170
- Return Policy: Magicpower Return Policy
Refurbished: SFXA5201A For Delta Haikong Hard Disk Recorder Power Supply ...
- Model #: 722954733666
- Item #: 9SIVB8UKAA5949
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PWS-981-1S redundant power module, server power supply 980W
- Model #: 726099252259
- Item #: 9SIVRWKKXD1651
- Return Policy: Nytke team Return Policy
Refurbished: 460W Power Supply ORION-D4601
- Model #: 703454715598
- Item #: 9SIVB8UKAJ5970
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply ST-300U1A ST-300UAG-05E 300W
- Model #: 724780182816
- Item #: 9SIVB8UKA98919
- Return Policy: Magicpower Return Policy
Refurbished: AD240-24 Original Disassembly Switching Power Supply 24V/10A 240W
- Model #: 724780777975
- Item #: 9SIVB8UKAA7598
- Return Policy: Magicpower Return Policy
Refurbished: For SP400-1R PWS-0064 Server Power Supply
- Model #: 726727775846
- Item #: 9SIVRWKKXA5029
- Return Policy: Nytke team Return Policy
Refurbished: SC1425 Server Power Supply 450W 0C8979,0FD832 DPS-450HB B
- Model #: 722954726033
- Item #: 9SIVB8UKAA7243
- Return Policy: Magicpower Return Policy
Refurbished: For YM-2651C YH-8451B YH-8651B YM-2651DAR YM-2451C YM-2451D Power ...
- Model #: 726727819083
- Item #: 9SIVRWKKXB1284
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply For FSP 650W Power Supply FSP650-802U
- Model #: 703454715949
- Item #: 9SIVB8UKAJ5956
- Return Policy: Magicpower Return Policy
Refurbished: For EVM-4502-00 Hard Disk Cabinet Power Supply 450W EVM-4502-00
- Model #: 726727722635
- Item #: 9SIVRWKKXA2281
- Return Policy: Nytke team Return Policy
Refurbished: For FSP500-702UC 500W 2U Server Industrial Control Power Supply
- Model #: 722954987779
- Item #: 9SIVB8UKAA6488
- Return Policy: Magicpower Return Policy
Refurbished: 2430W Power Supply DPST-2430AB C
- Model #: 753525941777
- Item #: 9SIVSY0KUU6534
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For x3650T DPS-600RB-1 A DC Power Supply D37225-001
- Model #: 726727725124
- Item #: 9SIVRWKKXA2588
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO ITX NAS -12V Small 1U M41 K39 Rated 400W Peak 500W Power ...
- Model #: 744623313733
- Item #: 9SIVB8UKD21750
- 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.
