Power Supplies - Showing 1993 - 2016 of 17933 Products
Refurbished: 3010 7010 9010 390 790 990 240W 3WN11 2TXYM H240AS-00 L240AS-00 ...
- Model #: 703454715406
- Item #: 9SIVB8UKAJ5885
- Return Policy: Magicpower Return Policy
Refurbished: R1S2-5300V4V P1S-2300V-R For Zippy Power Supply Special Power Module ...
- Model #: 753525955323
- Item #: 9SIVB8UKAA0304
- Return Policy: Magicpower Return Policy
Refurbished: Aruba 2930M 3810M 1050W Switching Power Supply JL087A DPS-1050EB A ...
- Model #: 753525944372
- Item #: 9SIVB8UKAA5364
- Return Policy: Magicpower Return Policy
Refurbished: V7000 main cabinet power supply 764W 00AR037 85Y6072 0955227-07
- Model #: 703454720837
- Item #: 9SIVSY0KUU3552
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: MIN-6250P Redundant 250W Server Storage
- Model #: 724780181475
- Item #: 9SIVB8UKA98820
- Return Policy: Magicpower Return Policy
Refurbished: For BPS 1U 400W Switching Power Supply BPS-400S
- Model #: 753525936650
- Item #: 9SIVB8UKA99501
- Return Policy: Magicpower Return Policy
Refurbished: HD4825-3 Communication Power Supply 48V/25A
- Type: ATX
- Model #: 703454923771
- Item #: 9SIVSY0KUT5095
- Return Policy: LiAnMengYuShangDian 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 switching power supply FSP550-12A 550W
- Model #: 792597724543
- Item #: 9SIVRWKKXD9077
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO OptiPlex 390 790 990 3010 7010 9010 Power Supply D240ES-00 ...
- Model #: 744623299020
- Item #: 9SIVB8UKCU6586
- Return Policy: Magicpower Return Policy
Refurbished: R320 R330 R420 350W Power Supply 0Y8Y65 D350E-S1 DPS-350AB
- Model #: 722954737275
- Item #: 9SIVB8UKAA6362
- Return Policy: Magicpower Return Policy
Refurbished: R4875G1 DMA-48-75 4000W Rectifier Module
- Model #: 753525932973
- Item #: 9SIVB8UKA99130
- Return Policy: Magicpower Return Policy
Refurbished: For DL160G6/165G6/G7 Power Supply 506077-002/1 506247-002/1 ...
- Model #: 752804574200
- Item #: 9SIVRWKKXB1757
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R5300 G4X server power supply ZGAS550 D2201212 550W power ...
- Model #: 716837084976
- Item #: 9SIVB8UKX58411
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply For MEGMEET 4.2V45A 200W Power Supply ...
- Model #: 722954989742
- Item #: 9SIVB8UKAJ5650
- Return Policy: Magicpower Return Policy
Refurbished: X3250M3 351W Server Power Supply 49Y4661 49Y4663
- Model #: 722954736384
- Item #: 9SIVB8UKAA6248
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1200W Power Supply PWS-1K27A-1R
- Model #: 744623314860
- Item #: 9SIVB8UKD21888
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 15V 10A 150W For PBA150F PBA150F-15 PBA150F-15-N
- Model #: 759950248108
- Item #: 9SIVB8UKDF9467
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S5800T S5600T HSP480-S12A 0213G006 Power Module
- Model #: 792597711451
- Item #: 9SIVRWKKXD4558
- Return Policy: Nytke team Return Policy
Refurbished: For AJ758-63001 HSV450 EVA8400 7G AJ758A 512731-001
- Model #: 726727777048
- Item #: 9SIVRWKKXB0118
- Return Policy: Nytke team Return Policy
Refurbished: For V7000 Expansion Cabinet Power Supply 00AR038 AR038 85Y6074 ...
- Model #: 726727775501
- Item #: 9SIVRWKKXA5054
- Return Policy: Nytke team Return Policy
Refurbished: For P1S-2400V-R Server Module Power Supply 400W
- Model #: 726099252921
- Item #: 9SIVRWKKXD1855
- Return Policy: Nytke team Return Policy
Refurbished: ForSUN 300-2235 AWF-2DC-1200W-S A249 X4270 M2 T5240 T3/T4-1 Power ...
- Model #: 722954736728
- Item #: 9SIVB8UKAA6283
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 15V0.2-2A -15V0.2-2A 55W Power Supply HF55W-DE-L
- Model #: 759950244674
- Item #: 9SIVB8UKDA9181
- 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.
