Power Supplies - Showing 1921 - 1944 of 17942 Products
Refurbished: Alienware Area 51 R2 D1500EF-00 DPS-1500FB A 1500W 800GY 0VK3T
- Model #: 753525955774
- Item #: 9SIVB8UKAA8794
- Return Policy: Magicpower Return Policy
Refurbished: PJA600F-12 600W Shell Mounted Power Supply
- Model #: 753525948813
- Item #: 9SIVB8UKAA0029
- Return Policy: Magicpower Return Policy
Refurbished: For TDK-Lambda HWS1500-36/BT Switching Power Supply Dual Current ...
- Model #: 722954729010
- Item #: 9SIVB8UKAA5484
- Return Policy: Magicpower Return Policy
Refurbished: IPC Power Supply HK350-15AP With -12V And -5V
- Model #: 722954737817
- Item #: 9SIVB8UKAA6378
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for NSP6F-220P-S13 Industrial Control Equipment Machine Power Supply
- Model #: 792597985760
- Item #: 9SIVB8UKX57389
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO EVOC ATX 810 820 250W Switching Power Supply PS-7270B ...
- Model #: 744623301532
- Item #: 9SIVB8UKCV8187
- Return Policy: Magicpower Return Policy
Refurbished: PSU For TC SURE STAR 400W Switching Power Supply R8P-400 SS-400R8P
- Model #: 753525934700
- Item #: 9SIVB8UKA99279
- Return Policy: Magicpower Return Policy
Refurbished: DPS-300AB-70 A 300W IPC-510 610 Industrial Power Supply
- Model #: 753525947779
- Item #: 9SIVB8UKA99909
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PowerEdge T340 350W Switching Power Supply AC350E-S0 NW98H ...
- Model #: 744623306797
- Item #: 9SIVB8UKD06235
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R1V2-5275V4H R1V-2275V Server Power Supply 275W
- Model #: 726099252716
- Item #: 9SIVRWKKXD1799
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply DPS-410AB-2A Delta 418W P1A-P10418-D-F2
- Model #: 722954721533
- Item #: 9SIVB8UKAA6786
- Return Policy: Magicpower Return Policy
Refurbished: New For 48V 50A 3000W Power Supply For RM4850H
- Model #: 753525990935
- Item #: 9SIVB8UKAA8003
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-500AB-14 A Server Power Supply 500W/12V/41.3A Switched ...
- Model #: 792597720897
- Item #: 9SIVRWKKXD7976
- Return Policy: Nytke team Return Policy
Refurbished: For HD4825-3 HD4830-3 Power Supply PSM-A10 Monitoring Module
- Model #: 722954723582
- Item #: 9SIVB8UKAA7005
- Return Policy: Magicpower Return Policy
Refurbished: For FSP400-60DL (48V) P2G-6510P DP2H-5500V P2G-6460P 48VDC power ...
- Model #: 726727820270
- Item #: 9SIVRWKKXB1458
- Return Policy: Nytke team Return Policy
Refurbished: For Embedded power module for EMERSON ADN5-24-1PM-C 120W 24V 5A
- Model #: 724780778361
- Item #: 9SIVB8UKAA6627
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 8852 2880W Switching Power Supply 39Y7364 39Y7349 39Y7409 ...
- Model #: 744623305516
- Item #: 9SIVB8UKD01909
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-700EB E H3C 700W Server Redundant Power Supply Module
- Model #: 752804577010
- Item #: 9SIVRWKKXB2128
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FSP250-601U FSP300 FSP350-70 1UJ D Industrial Control Server 1U ...
- Model #: 792597983698
- Item #: 9SIVB8UKX57003
- Return Policy: Magicpower Return Policy
Refurbished: 3250 7450 Power Supply H155EA-01 HU200EPA-00 NMCMW 09121N
- Model #: 722954722820
- Item #: 9SIVSY0KUR8160
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: MGV 27.3V Power Supply PH803-2830 00-110-699
- Model #: 703454716038
- Item #: 9SIVB8UKAJ6003
- Return Policy: Magicpower Return Policy
Refurbished: MAX POWER 500W Power Supply PS-4501-2 L84091
- Type: ATX
- Model #: 753525937749
- Item #: 9SIVSYTKUT3231
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: KHACHIMO CRPS 1600W Switching Power Supply PWS-1K66P-1R ...
- Model #: 744623302386
- Item #: 9SIVB8UKCV8237
- Return Policy: Magicpower Return Policy
Refurbished: Aruba S3500 350W Power Supply PSU-350-AC DCJ3501-03PLF
- Model #: 753525944198
- Item #: 9SIVB8UKAA5336
- 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.
