Power Supplies - Showing 2161 - 2184 of 17935 Products
Refurbished: KHACHIMO Rated 250W Switching Power Supply ATX-300SD
- Model #: 744623311579
- Item #: 9SIVB8UKD12245
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 5V15A 12V6A 24V2A Power Supply WM-2
- Model #: 745635674744
- Item #: 9SIVB8UKDA0237
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO CPRS 650W Switching Power Supply DPS-650AB-16 S ...
- Model #: 744623310671
- Item #: 9SIVB8UKD12086
- Return Policy: Magicpower Return Policy
Refurbished: For Z440 700W workstation power supply 719795-004 858854-001 ...
- Model #: 792597702695
- Item #: 9SIVRWKKXD2226
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 1600W D1600E-S2 DPS-1600DB-1 A (S3F) Small Size Server Power ...
- Model #: 792597705252
- Item #: 9SIVRWKKXD2659
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO -48V 550W 800W Power Supply R1CD2551A R1CD2551B ...
- Model #: 759950242458
- Item #: 9SIVB8UKDA8844
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 720-24IKB Power Supply PA-2251-1 250W
- Model #: 726099252402
- Item #: 9SIVRWKKXD1789
- Return Policy: Nytke team Return Policy
Refurbished: For HP L75200-001 PA-5551-1HA Power Supply
- Type: ATX
- Model #: 703454727089
- Item #: 9SIVSYTKUT1236
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1PCS for T3600 T5610 T7600 F685EF-00 D685EF-00 685W Power Supply ...
- Model #: 792597707188
- Item #: 9SIVRWKKXD3576
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DPS-250AB-47D/101B 20-pin 4IDE interface
- Model #: 792597707478
- Item #: 9SIVRWKKXD3567
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for SC200 SC220 Storage Power Supply DD20N R0C2G H700E-S0 ...
- Model #: 792597985340
- Item #: 9SIVB8UKX57221
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SS-460H1U Active PFC 460W Server IPC Power Supply
- Model #: 731029999791
- Item #: 9SIVRWKKXD1343
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for power supply 071-000-543 071-000-559 071-000-523 ...
- Model #: 792597984411
- Item #: 9SIVB8UKX57093
- Return Policy: Magicpower Return Policy
Refurbished: MRG-3800V-R 800W Server Industrial Computer Firewall Power Redundancy ...
- Model #: 753525934335
- Item #: 9SIVB8UKA99232
- Return Policy: Magicpower Return Policy
Refurbished: MPU150-3300 Industrial Computer Power Supply
- Model #: 753525954432
- Item #: 9SIVB8UKAA0194
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DS850-3 network machine power supply 850W 3.3V server power ...
- Model #: 716837084839
- Item #: 9SIVB8UKX58392
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for POE Recorder DPS-200PB-185A Power Supply DPS-200PB-205A
- Model #: 731029999753
- Item #: 9SIVRWKKXD1336
- Return Policy: Nytke team Return Policy
Refurbished: For E780E-S1 Recorder Power Supply
- Model #: 752804575931
- Item #: 9SIVRWKKXB2062
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FSP300-60DL (48V) 300W ATX IPC Server, Power Supply
- Model #: 792597716180
- Item #: 9SIVRWKKXD6559
- Return Policy: Nytke team Return Policy
Refurbished: For FSP PS8-500ATX-ZE FSP500-60GHN ATX3000-68PD FSP750-80EGN
- Model #: 726727818796
- Item #: 9SIVRWKKXB1310
- Return Policy: Nytke team Return Policy
Refurbished: For Motorola Power Module AA25920L
- Model #: 703454719015
- Item #: 9SIVB8UKAJ6348
- Return Policy: Magicpower Return Policy
Refurbished: C240M4 PS-2122-2S UCSC-PSU2V2-1200W 341-0631 Server
- Model #: 722954730085
- Item #: 9SIVB8UKAA5611
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 300W Switching Power Supply P1A-6300P
- Model #: 744623306834
- Item #: 9SIVB8UKD06251
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply PWS-865-PQ 865W 8PIN
- Type: ATX
- Model #: 703454923573
- Item #: 9SIVSYTKUT3502
- Return Policy: SuZhouLiYuanLiXinBaiHuo 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.
