Power Supplies - Showing 2377 - 2400 of 18359 Products
Refurbished: PPS300R-60M 300W NS-SM-A-BSE Switching Power Supply
- Model #: 753525948196
- Item #: 9SIVB8UKA99976
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for HK300-72PP 200W video recorder monitoring power supply TFX small ...
- Model #: 792597715787
- Item #: 9SIVRWKKXD6377
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for R430 server power supply R430 450W XKY89
- Model #: 792597704910
- Item #: 9SIVRWKKXD2624
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 12V29A 350W Power Supply VAT-H350-12-ST-D ...
- Model #: 759950245220
- Item #: 9SIVSY0KUS0049
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: M770 Power Supply S26113-E595-V50-01 DPS-450AB-15 A
- Model #: 722954730382
- Item #: 9SIVB8UKAA5630
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For STLZ01PWRA 0235G404 S5600T S5800T S6800T module
- Model #: 716837095798
- Item #: 9SIVB8UKX62606
- Return Policy: Magicpower Return Policy
Refurbished: RD450 550 650 750W PS-2751-3L-LF
- Model #: 753525985979
- Item #: 9SIVB8UKAA8457
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for server power supply 750W DPS-750XB A E98791-007/008/009/010
- Model #: 792597983568
- Item #: 9SIVB8UKX56903
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ZXDU48B900 Communication Power Supply-48V 48V90A
- Model #: 716837093534
- Item #: 9SIVB8UKX61929
- Return Policy: Magicpower Return Policy
Refurbished: For M3000 SPARC Server Power Supply CA01022-0720 7070889 300-2193
- Model #: 726727815733
- Item #: 9SIVRWKKXB0236
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply For 44-58V 5V 1200W Power Supply CP2725AC54AZ
- Model #: 722954989445
- Item #: 9SIVB8UKAJ5631
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For CWT -5V 400W Switching Power Supply CWT-400BDP
- Model #: 744623302263
- Item #: 9SIVB8UKCV8239
- Return Policy: Magicpower Return Policy
Refurbished: For V7000 Expansion Cabinet Power Supply 00AR038 AR038 85Y6074 ...
- Model #: 726727775501
- Item #: 9SIVRWKKXA5054
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for GX100 GX110 GX200 MT Large Power Supply NPS-200PB-73 ...
- Model #: 792597728237
- Item #: 9SIVB8UKX32948
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP300-60WS2 ST-150UB-05E ST-180FUB-05E ST-220FUB ...
- Model #: 716837086499
- Item #: 9SIVB8UKX59188
- Return Policy: Magicpower Return Policy
Refurbished: R12-3000G1 switch module 12V/240A
- Model #: 703454721834
- Item #: 9SIVB8UKAJ6652
- Return Policy: Magicpower Return Policy
Refurbished: For Disk Cabinet Power Supply SPAXRTX-03G 83712-01 ...
- Model #: 726727731040
- Item #: 9SIVRWKKXA3281
- Return Policy: Nytke team Return Policy
Refurbished: For FSP460-701UH 24 + 8 + 8 gold medal, power supply 460w 1U
- Model #: 752804578178
- Item #: 9SIVRWKKXB2259
- Return Policy: Nytke team Return Policy
Refurbished: ML370G6 Power Backplane 491836-001 467999-001
- Model #: 722954729997
- Item #: 9SIVB8UKAA5576
- Return Policy: Magicpower Return Policy
Refurbished: 350W Power Supply EMPW-H350B 856-851311-001
- Model #: 703454714621
- Item #: 9SIVB8UKAJ5728
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SS-750HT Industrial Computer Server Power Supply
- Model #: 792597716203
- Item #: 9SIVRWKKXD6545
- Return Policy: Nytke team Return Policy
Refurbished: For Z200 Graphics Workstation Power Supply DPS-320KB-1 A 502629-001 ...
- Model #: 752804574866
- Item #: 9SIVRWKKXB1926
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO AIO 720-24IKB 8Pin 250W Switching Power Supply PA-2251-1 ...
- Model #: 744623299761
- Item #: 9SIVB8UKCU6646
- Return Policy: Magicpower Return Policy
Refurbished: 80PLUS Bronze 1U 250W Switching Power Supply EFAP-S250 EFAP-M251
- Model #: 753525945430
- Item #: 9SIVB8UKA99620
- 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.
