Power Supplies - Showing 1969 - 1992 of 17991 Products
Refurbished: KHACHIMO 740 755 760 780 330 360 380 305W Power Supply N305E-00 ...
- Model #: 744623306988
- Item #: 9SIVB8UKD06354
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DVR Rated 230W Peak 335W Switching Power Supply P4-335TB
- Model #: 744623317007
- Item #: 9SIVB8UKD64493
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP350-50AAC FSP220-50FGBBI FSP460-73PFL(SK) FSP600-50AAC
- Model #: 716837087779
- Item #: 9SIVB8UKX59613
- Return Policy: Magicpower Return Policy
Refurbished: AQF100O-24S 100W Switching Power Supply Input AC90-264V Output DC24V
- Model #: 724780182120
- Item #: 9SIVB8UKA98838
- Return Policy: Magicpower Return Policy
Refurbished: For D550E-S0 DPS-550MB A R320 R420 R620 R720 Power Supply 0RYMG6
- Model #: 726727775198
- Item #: 9SIVRWKKXA4369
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 500W Power Supply DPS-500AB-20A DPS-500AB-20 A ...
- Model #: 744623316840
- Item #: 9SIVB8UKD64477
- Return Policy: Magicpower Return Policy
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: 350W Power Supply RP35SA-
- Model #: 753525943535
- Item #: 9SIVB8UKAA5316
- 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: 1U 250W Switching Power Supply EN-8257763 HPS-2501U-21205
- Model #: 753525945997
- Item #: 9SIVB8UKA99688
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R4815G1 power module 48V15A 220V to 48V power supply
- Model #: 716837094821
- Item #: 9SIVB8UKX62279
- Return Policy: Magicpower Return Policy
Refurbished: For Communication Power Module PSE350-A
- Model #: 722954723827
- Item #: 9SIVT8HKWF2829
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO PowerEdge1850 550W Switching Power Supply AA23300 ...
- Model #: 744623314600
- Item #: 9SIVB8UKD21873
- Return Policy: Magicpower Return Policy
Refurbished: For 6 + 4 240w computer power supply AC240AM-01 4YXMF 3050 60 70 80 90 ...
- Model #: 752804580041
- Item #: 9SIVRWKKXB2456
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Rated 180W Peak 230W Power Supply GW-TFX180
- Model #: 744623307916
- Item #: 9SIVB8UKD06470
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3050 3668 5090 3070 7050 7070 3650 3653 3470 6Pin 460W Power ...
- Model #: 744623302423
- Item #: 9SIVB8UKCV8248
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U I610r-FQ 500W Switching Power Supply H1H-6507P
- Model #: 744623305929
- Item #: 9SIVSY0KUT7949
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For 3289056-A 3289056-P HDS VSP G400 G600 Power Supply
- Model #: 722954736209
- Item #: 9SIVB8UKAA6221
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3020 7020 9020 8Pin 290W Power Supply HU290AM-01 ...
- Model #: 744623299211
- Item #: 9SIVB8UKCU6566
- Return Policy: Magicpower Return Policy
Refurbished: T5500 T5400 Workstation Power Supply H875EF-00 N875EF-00 875W J556T
- Model #: 722954988066
- Item #: 9SIVB8UKAA6555
- Return Policy: Magicpower Return Policy
Refurbished: 2800W Power Supply 700-015042-0000 341-0772-01
- Model #: 753525945683
- Item #: 9SIVB8UKA99615
- Return Policy: Magicpower Return Policy
Refurbished: New For ETA-SEI Power Supply VTM12SC24
- Model #: 753525990973
- Item #: 9SIVB8UKAA8019
- Return Policy: Magicpower Return Policy
Refurbished: LDA10F-3 Industrial Medical Equipment Power Supply 3V/2.0A
- Model #: 724780778996
- Item #: 9SIVRTNKX42937
- Return Policy: Jiamayanonly Return Policy
Refurbished: KHACHIMO MICRO TFX 250W Switching Power Supply SD-350TFA
- Model #: 744623316581
- Item #: 9SIVB8UKD46525
- 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.
