Power Supplies - Showing 2233 - 2256 of 17943 Products
Refurbished: ForSDA10-4850 communication 48V50AH RV solar outdoor power supply ...
- Model #: 703454722831
- Item #: 9SIVB8UKAJ6759
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for R1A-FH0400 U1A-F10400-DRB 400W 1+1 server redundant power ...
- Model #: 792597722785
- Item #: 9SIVRWKKXD8630
- Return Policy: Nytke team Return Policy
Refurbished: Z8 G5 1450W Power Supply R20-1K1P1A R1K1A001Q M25919-001 ...
- Model #: 703454717097
- Item #: 9SIVB8UKAJ6169
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 510S M420 700-24AGR 6Pin 260W Power Supply PA-1261-7 ...
- Model #: 744623299075
- Item #: 9SIVB8UKCU6559
- Return Policy: Magicpower Return Policy
Refurbished: For HPML570G3 DL580G3G4 Power Supply 337867-001 364360-001 ...
- Model #: 722954724756
- Item #: 9SIVB8UKAA7169
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply For LITEON 750W Power Backplane DD-3151-1F-LF ...
- Model #: 703454714904
- Item #: 9SIVB8UKAJ5739
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For NEC AIO i5 HM55 HM65 HM75 120W Power Supply ...
- Model #: 744623316529
- Item #: 9SIVB8UKD46502
- Return Policy: Magicpower Return Policy
Refurbished: 350W Power Supply EFAP-352
- Model #: 753525943542
- Item #: 9SIVB8UKAA5276
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO P340 P350 P360 M930T 10Pin 750W Power Supply PA-3751-1 VA ...
- Model #: 744623311531
- Item #: 9SIVB8UKD12246
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 510S M420 280 G2 400 G4 m710e m720e M4000S 700-24AGR 6Pin ...
- Model #: 744623302973
- Item #: 9SIVB8UKCW6037
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3550 3650 M2 M3 675W Power Supply 7001484-J000 ...
- Model #: 744623312798
- Item #: 9SIVB8UKD19609
- Return Policy: Magicpower Return Policy
Refurbished: 580W Power Supply HRD580-6600
- Model #: 753525941135
- Item #: 9SIVB8UKAA4978
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO LFA15F 5V3A 15W Power Supplly LFA15F-5-SNJ1 LFA15F-5-SN ...
- Model #: 759950240263
- Item #: 9SIVB8UKDA0375
- Return Policy: Magicpower Return Policy
Refurbished: For Zhanbo JPSU715-AC-AFO DS-75BPB A1-QGJ Switch Power Supply 715W
- Model #: 722954727085
- Item #: 9SIVB8UKAA7369
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 130W Power Supply Borad VLT130-1100
- Model #: 759950245626
- Item #: 9SIVB8UKDA9332
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 320W Switching Power Supply MRT-6320P-R
- Model #: 744623301730
- Item #: 9SIVB8UKCV8172
- Return Policy: Magicpower Return Policy
Refurbished: CRPS 550W Switching Power Supply DPS-550AB-36 B DPS-550AB-36B
- Model #: 753525944389
- Item #: 9SIVB8UKAA5368
- Return Policy: Magicpower Return Policy
Refurbished: P750 Expansion Enclosure 5802 Power Supply DCA-T19 42R8429 45D9861 ...
- Model #: 722954732935
- Item #: 9SIVB8UKAA5905
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for YM-7381C 380W Power Supply Module YM-7381CB02
- Model #: 792597708277
- Item #: 9SIVRWKKXD3838
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for E450 D650 6 + 4P Small Chassis Power PA-1181-10AC PA-5181-3A
- Model #: 792597982479
- Item #: 9SIVB8UKX56664
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ACE300F 300W Power Supply AC3-M9VO-00 AC3-M9V0-00
- Model #: 759950242656
- Item #: 9SIVB8UKDA8829
- Return Policy: Magicpower Return Policy
Refurbished: For H-P2-6460P Server Tower Power Supply Medical Equipment Power Supply
- Model #: 726727724721
- Item #: 9SIVRWKKXA2517
- Return Policy: Nytke team Return Policy
Refurbished: SUN T5120 X4140 X4150 658W Power Supply A221 300-2015-05 300-2015-06
- Model #: 753525942392
- Item #: 9SIVB8UKAA5136
- Return Policy: Magicpower Return Policy
Refurbished: A5E02625806-K7 Origina IPC Power Supply
- Model #: 753525933307
- Item #: 9SIVB8UKA99120
- 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.
