Power Supplies - Showing 2185 - 2208 of 17990 Products
Refurbished: 80PLUS Bronze T440 R540 450W Power Supply AC450E-S0 FSD060-241G2 ...
- Model #: 753525935721
- Item #: 9SIVB8UKA99387
- Return Policy: Magicpower Return Policy
Refurbished: Power PS-8501-2 VB 80 supports 8+8 graphics card
- Model #: 703454721308
- Item #: 9SIVB8UKAJ6582
- Return Policy: Magicpower Return Policy
Refurbished: Matx P3 145W Switching Power Supply SS-145SFD
- Model #: 753525945362
- Item #: 9SIVB8UKA99637
- Return Policy: Magicpower Return Policy
Refurbished: For PWR-0129-04 SP679-Z01A 6400 6800 Power Supply 400W
- Model #: 724780779481
- Item #: 9SIVB8UKAA6731
- Return Policy: Magicpower Return Policy
Refurbished: For S500 700 A711J E4200i E4600i E4800i E4920i Power Supply ADP-130BFB
- Model #: 726727733648
- Item #: 9SIVRWKKXA3824
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for S510 S770 S3040 Integrated Power Supply PS- 2181-01 FSP150-20AI
- Model #: 792597982660
- Item #: 9SIVB8UKX56790
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DC 280W Power Supply PSR05-D
- Model #: 759950249303
- Item #: 9SIVB8UKDF9581
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DA 24V 500W Power Supply BD-308
- Model #: 759950242304
- Item #: 9SIVB8UKDA8779
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 48V13A 624W Power Supply SL600PS48-CT SL600PS
- Model #: 759950245114
- Item #: 9SIVB8UKDA9272
- Return Policy: Magicpower Return Policy
Refurbished: For CSU550AP-3-100 550W server power supply
- Model #: 726727821239
- Item #: 9SIVRWKKXB1562
- Return Policy: Nytke team Return Policy
Refurbished: PWR350A Power Module AR0MPSAP3500 Power Supply AR2240 AR3260
- Model #: 722954732744
- Item #: 9SIVB8UKAA5835
- Return Policy: Magicpower Return Policy
Refurbished: For CONDOR Power Supply For GPC55E G
- Model #: 753525989878
- Item #: 9SIVB8UKAA7785
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs For Poweredge R240 P3G94 AC250E-S0 250W Server Power Supply
- Model #: 726099253430
- Item #: 9SIVRWKKXD1954
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FSP180-50LH industrial control host power supply 180W small 1u
- Model #: 792597705047
- Item #: 9SIVRWKKXD2648
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for IPC-810E HK350-15AP 350W ATX Power Supply
- Model #: 792597714308
- Item #: 9SIVRWKKXD5857
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PowerEdge 1750 320W Switching Power Supply PS-2321-1 ...
- Model #: 744623315515
- Item #: 9SIVB8UKD46434
- Return Policy: Magicpower Return Policy
Refurbished: For R1CA2801A Server Power Supply
- Model #: 752804576785
- Item #: 9SIVRWKKXB2115
- Return Policy: Nytke team Return Policy
Refurbished: 071-000-460 7000958-Y000 CX3-80 1200W HJ751
- Model #: 724780182762
- Item #: 9SIVB8UKA98897
- Return Policy: Magicpower Return Policy
Refurbished: T420 R520 550W Cold Power Supply 96R8Y F550E-S0 2G4WR DH550E-S1
- Model #: 722954736452
- Item #: 9SIVB8UKAA6277
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PSB400M-J3 400W Power Supply PSB400M-J3
- Model #: 792597722983
- Item #: 9SIVRWKKXD8450
- Return Policy: Nytke team Return Policy
Refurbished: 2960G-24/48TC 3750G-24TS-S Power Supply 341-0098-02
- Model #: 753525957211
- Item #: 9SIVB8UKAA8975
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for VNX5300 VNX5500 power supply 071-000-543 AA26340L ...
- Model #: 792597984824
- Item #: 9SIVB8UKX57159
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Contact Uninterruptible Power Supply 2320270 ...
- Model #: 759950240621
- Item #: 9SIVB8UKDA0378
- Return Policy: Magicpower Return Policy
Refurbished: For GW-2UR550 2U 550W Server Redundant Power Cage
- Model #: 726727725087
- Item #: 9SIVRWKKXA2662
- 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.
