Power Supplies - Showing 1969 - 1992 of 17979 Products
Refurbished: PowerEdge PE2650 Server Power Supply DPS-500CBA J1540
- Model #: 722954731013
- Item #: 9SIVB8UKAA5686
- Return Policy: Magicpower Return Policy
Refurbished: FSA016 650W JPSU-650W-DC-AFI 740-038949 QFX5100-48T DC Power ...
- Model #: 724780181635
- Item #: 9SIVB8UKA98789
- Return Policy: Magicpower Return Policy
Refurbished: AC Power Module For AR3260/AR2240 Series PAC-850WL-LE 850W
- Model #: 703454925058
- Item #: 9SIVB8UKA98687
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for JPSU-1600W-1UACAFO AFI 1UDCAFO DPS-1600AB-29 30 Power ...
- Model #: 716837085959
- Item #: 9SIVB8UKX58939
- Return Policy: Magicpower Return Policy
Refurbished: PC12U-200P-X2SV For NIPRON Industrial Medical Equipment Power Supply
- Model #: 753525933239
- Item #: 9SIVB8UKA99136
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply MAGNETEK 172W Power Supply 3D53-18-1 S30122-K7678 ...
- Model #: 722954989261
- Item #: 9SIVB8UKAJ5592
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA HFE1600 1600W Power Supply ...
- Model #: 759950241758
- Item #: 9SIVB8UKDA8748
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 500W Power Supply HF500W-QV-G
- Model #: 759950244483
- Item #: 9SIVB8UKDA9201
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply DELTA 3030W Power Supply DPST-3030BB A
- Model #: 722954989841
- Item #: 9SIVB8UKAJ5640
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 24V20A Rail Power Supply PRO-480W 24V 20A EX 2467000000
- Model #: 792597720262
- Item #: 9SIVRWKKXD7671
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 3289081-A HDS VSP G200 G400 G600 G800 G1000 Battery
- Model #: 792597722655
- Item #: 9SIVRWKKXD8602
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 14 pin 625W P410 P520C power supply FSP625-50ETN 5P51D76970
- Model #: 716837092094
- Item #: 9SIVB8UKX61381
- Return Policy: Magicpower Return Policy
Refurbished: For P1S-2300V-R Redundant Power Supply Module P1S2-5300V4V 300W
- Model #: 726727774801
- Item #: 9SIVRWKKXA4188
- Return Policy: Nytke team Return Policy
Refurbished: For Juniper EX4300 Power Supply JPSU-350-AC-AFI 350W
- Model #: 722954727382
- Item #: 9SIVB8UKAA7387
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3020 3710 3910 7010 MT 8Pin+4Pin+4Pin 240W D240EBS-00 ...
- Model #: 759950240171
- Item #: 9SIVB8UKDA0347
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y YM-2721A YM-2721ACR 720W Server, Power Module
- Model #: 726727815832
- Item #: 9SIVRWKKXB0208
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 500W Switching Power Supply M1S-3500V
- Model #: 744623315799
- Item #: 9SIVB8UKD46448
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO C7000 2650W Power Supply HSTNS-PR42 732605-301 ...
- Model #: 744623297958
- Item #: 9SIVB8UKCU6396
- Return Policy: Magicpower Return Policy
Refurbished: 24Pin*2 650W Power Supply PS-4651-1ZT
- Model #: 753525945379
- Item #: 9SIVB8UKA99641
- Return Policy: Magicpower Return Policy
Refurbished: D10 D20 1000W Power Supply DPS-1000GB A 41A9765 41A9764
- Model #: 753525941630
- Item #: 9SIVB8UKAA5030
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP500-50FDB 1u industrial control server itx chassis NAS
- Model #: 792597714322
- Item #: 9SIVRWKKXD5840
- Return Policy: Nytke team Return Policy
Refurbished: For PE750 Server Power supply H-P-U280EF3 W5916 P8823 F1265
- Model #: 726727724660
- Item #: 9SIVRWKKXA2462
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 8183 8320 8172 A50 S50 865 200W Power Supply API2PC23 ...
- Model #: 744623305677
- Item #: 9SIVB8UKD01923
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs Optimizer for P600-5RM4MRL 600W
- Model #: 792597718597
- Item #: 9SIVRWKKXD7183
- 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.
