Power Supplies - Showing 2305 - 2328 of 17941 Products
Refurbished: 1PCS for 750W power supply L750E-S0 061XT E750E-S1 4V8KD D750E-S6 ...
- Model #: 792597983667
- Item #: 9SIVB8UKX56990
- Return Policy: Magicpower Return Policy
Refurbished: PowerEdge 830 840 PE840 Power GD278 NPS-420ABE
- Model #: 722954722455
- Item #: 9SIVB8UKAA6902
- Return Policy: Magicpower Return Policy
Refurbished: For nf5580a nf380d server power supply MRM-6600P-R MRM-6600P 600W
- Model #: 726727724233
- Item #: 9SIVRWKKXA2463
- Return Policy: Nytke team Return Policy
Refurbished: For X235 Server Power X235 49P2177 49P2178
- Model #: 726727725018
- Item #: 9SIVRWKKXA2600
- Return Policy: Nytke team Return Policy
Refurbished: 24V/5A Switching Power Supply TRIO-PS/1AC/24DC/5 2866310
- Model #: 724780182755
- Item #: 9SIVB8UKA98894
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 250W Switching Power Supply EFA-250
- Model #: 726099223150
- Item #: 9SIVB8UKCU6319
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO EliteOne 800 G3 180W Switching Power Supply DPS-180AB-28 A ...
- Model #: 744623299907
- Item #: 9SIVB8UKCU6653
- Return Policy: Magicpower Return Policy
Refurbished: FSP060-40ASV Monitoring DVR/NVR Power Supply
- Model #: 722954721168
- Item #: 9SIVB8UKAA6779
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply NPS42-M 100-24VAC
- Model #: 753525990324
- Item #: 9SIVB8UKAA7813
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 450W power supply (RS-450-AMAP-F1)
- Model #: 716837092841
- Item #: 9SIVB8UKX61573
- Return Policy: Magicpower Return Policy
Refurbished: 00DJ269 00DJ270 1TB Flash 10GB 900 840 Flash Module SSD
- Model #: 703454720844
- Item #: 9SIVB8UKAJ6549
- Return Policy: Magicpower Return Policy
Refurbished: For EPR-303R 300W Redundant Power Supply
- Model #: 726727731231
- Item #: 9SIVRWKKXA3354
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1U 560W Replace 450W Switching Power Supply RSD-3600UP
- Model #: 744623312989
- Item #: 9SIVB8UKD19614
- Return Policy: Magicpower Return Policy
Refurbished: For Z640 workstation power supply 925W 719797-003 758468-001 ...
- Model #: 731029999241
- Item #: 9SIVRWKKXD1136
- Return Policy: Nytke team Return Policy
Refurbished: For GW-160SAH Recorder Power Supply
- Model #: 752804576556
- Item #: 9SIVRWKKXB2109
- Return Policy: Nytke team Return Policy
Refurbished: For MAP55-4003 POWER-ONE
- Model #: 726727724288
- Item #: 9SIVRWKKXA2367
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 675W 12V55A 7001484-J000
- Model #: 792597705696
- Item #: 9SIVRWKKXD2882
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for EPW1200-12H RH2288 V3 server DC power supply 12V/100A/1200W
- Model #: 792597720613
- Item #: 9SIVRWKKXD7823
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-500AB-13A 723594-001 723595-501 720478-B21 500W power ...
- Model #: 726727725872
- Item #: 9SIVRWKKXA2670
- Return Policy: Nytke team Return Policy
Refurbished: Server EFRP-2462 Mini 1+1 Redundant 460W EFRP-462
- Model #: 703454720899
- Item #: 9SIVB8UKAJ6514
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO HWS100A 12V 8.5A 100W For HWS100A-12 MEA ...
- Model #: 759950247729
- Item #: 9SIVSY0KUV2620
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: T3400 T410 Server Power Supply NPS-525AB A N525E-00 H525E-00 YN637 ...
- Model #: 722954987847
- Item #: 9SIVB8UKAA6467
- Return Policy: Magicpower Return Policy
Refurbished: PSR650B-12A1 Server Communication Power Module, 650W
- Model #: 722954721403
- Item #: 9SIVT8HKWF2828
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for DPR48/50-E-DGC communication power supply ESR-48/56F Z ...
- Model #: 792597721818
- Item #: 9SIVRWKKXD8303
- 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.
