Power Supplies - Showing 2257 - 2280 of 17941 Products
Refurbished: 1Pcs for 2CTMC T7920 1400W H1400EF-00 D1400EF-00 Power Supply
- Model #: 716837088615
- Item #: 9SIVB8UKX60102
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For 3Y 380W Switching Power Supply YM-7381C
- Model #: 744623310473
- Item #: 9SIVB8UKD12101
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for R440 Cold Power Supply 0T7MF2 AC450E-S1 T7MF2
- Model #: 716837097822
- Item #: 9SIVB8UKX62990
- Return Policy: Magicpower Return Policy
Refurbished: For AT power supply SPQ-4200 SPQ-4250 SAP-4230P RSPM-6300P ...
- Model #: 726727819502
- Item #: 9SIVRWKKXB1444
- Return Policy: Nytke team Return Policy
Refurbished: DC 650W Power Supply HSP650-S12D
- Model #: 753525942118
- Item #: 9SIVB8UKAA5120
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for X3100M5 M4 Server, Power Supply 00J6073 00AL205 DPS-350AB-16 B
- Model #: 792597983506
- Item #: 9SIVB8UKX56883
- Return Policy: Magicpower Return Policy
Refurbished: For SFXA5201A SFXA5201B SFXA5201C Hard Disk Video Recorder Power Supply
- Model #: 726727732788
- Item #: 9SIVRWKKXA3524
- Return Policy: Nytke team Return Policy
Refurbished: FSP ITX 250W Power Supply FSP250-50FGBBI
- Model #: 753525937015
- Item #: 9SIVB8UKA99541
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 620W Switching Power Supply C2W-3620V-R C2W-5620V
- Model #: 744623299983
- Item #: 9SIVB8UKCU6690
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R4900 R2900 R4700 G2 G3 Server 850W Power Supply PSR550-12A ...
- Model #: 792597983735
- Item #: 9SIVB8UKX56967
- Return Policy: Magicpower Return Policy
Refurbished: For Enhance7145B FLEX small 1U power supply NAS server 450w with graphics ...
- Model #: 703454721186
- Item #: 9SIVB8UKAJ6581
- Return Policy: Magicpower Return Policy
Refurbished: For NP370G2 Server Power Supply PS-5501-2
- Model #: 722954724619
- Item #: 9SIVB8UKAA7118
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP300-50FFB NAS industrial computer, power supply 300W
- Model #: 792597726288
- Item #: 9SIVRWKKXD9629
- Return Policy: Nytke team Return Policy
Refurbished: D650 D850 X4660G Power Supply PA-1181-10AC PA-2251-2AB
- Model #: 703454720592
- Item #: 9SIVB8UKAJ6547
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 80Y9081 60Y0621 39Y9661 39M4945 44X3058 49Y6315
- Model #: 716837097785
- Item #: 9SIVB8UKX62975
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO AT 150W Power Supply SPE-4150F
- Model #: 759950239656
- Item #: 9SIVB8UKDA0288
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 460W PS-2461-7H Switching Power Supply
- Model #: 792597705580
- Item #: 9SIVRWKKXD2718
- Return Policy: Nytke team Return Policy
Refurbished: Switching Power Supply Module PAC75WA ECC500 V600R001C01 ...
- Model #: 724780183028
- Item #: 9SIVB8UKA98950
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for NF5280M4 SA5212 PS-2801-6LS Server Power Supply 800W
- Model #: 792597726141
- Item #: 9SIVRWKKXD9606
- Return Policy: Nytke team Return Policy
Refurbished: OPTIPLEX 5250 5260 Power Supply H155EA-01 AC155EA-01 HPY3Y X1V9H
- Model #: 722954721731
- Item #: 9SIVB8UKAA6858
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For CWT AT P8P9 250W Power Supply CWT-9250CT2
- Model #: 759950244100
- Item #: 9SIVB8UKDA9127
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DU7800-1/-2 switching power supply DC to DC
- Model #: 792597719976
- Item #: 9SIVRWKKXD7666
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For CA07145-C601 FC 8G_4PORT DX80 Controller
- Model #: 716837096252
- Item #: 9SIVB8UKX62695
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply 241120.400 241120.200
- Model #: 759950245916
- Item #: 9SIVB8UKDA9347
- 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.
