Power Supplies - Showing 2233 - 2256 of 18223 Products
Refurbished: KHACHIMO 200W Switching Power Supply RP-2015-10
- Model #: 744623301839
- Item #: 9SIVB8UKCV8165
- Return Policy: Magicpower Return Policy
Refurbished: E870 E880 1722W Power Supply BPS1720 00FV848 00RR362 01KL122 ...
- Model #: 703454715314
- Item #: 9SIVB8UKAJ5895
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for P1N-6300P P1U-6150P P1U-6200P industrial computer power supply
- Model #: 716837086253
- Item #: 9SIVB8UKX58917
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for W0PSA1701 communication power supply ME170-12A-1 switching ...
- Model #: 792597719198
- Item #: 9SIVRWKKXD7503
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS 24V 4.5A Power Supply R100U-24
- Model #: 724780182519
- Item #: 9SIVB8UKA98895
- Return Policy: Magicpower Return Policy
Refurbished: FH-XD301MYR-1 300W Desktop Computer Power Supply
- Model #: 722954732522
- Item #: 9SIVSYTKUU8381
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1PCS for PA-1181-10AC power supply 180 watts [6 pins + 4 pins]
- Model #: 792597708284
- Item #: 9SIVRWKKXD3802
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 7040 5040 3650sff small chassis host AC240EM-00 B240AM-01 power ...
- Model #: 792597706020
- Item #: 9SIVRWKKXD2918
- Return Policy: Nytke team Return Policy
Refurbished: 500W Power Supply ePCSA-500P ePCSA-500P-X2S
- Model #: 753525944730
- Item #: 9SIVB8UKAA5392
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for MKP451C Module 28V 12.5A
- Model #: 792597723515
- Item #: 9SIVRWKKXD8769
- Return Policy: Nytke team Return Policy
Refurbished: 100-240VAC ±15V/4A Power Supply ASM60-15
- Model #: 753525988550
- Item #: 9SIVB8UKAA7646
- Return Policy: Magicpower Return Policy
Refurbished: For 21P4437 power supply 1100W AC P650 FC6287 09P3354 RS6000
- Model #: 703454721384
- Item #: 9SIVB8UKAJ6609
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO S5600T S5800T 480W Switching Power Supply HSP480-S12A
- Model #: 744623304649
- Item #: 9SIVB8UKCW6234
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80W Power Supply SRW-80-3003-24
- Model #: 759950246296
- Item #: 9SIVB8UKDA9356
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CUS350M-24 24V17.5A 350w switching power supply
- Model #: 792597719167
- Item #: 9SIVRWKKXD7508
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for PS-2551-7L 12V 45A 550W power supply
- Model #: 792597706877
- Item #: 9SIVRWKKXD3257
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO VNX5100 VNX5300 VNX5500 875W Power Supply 071-000-529 ...
- Model #: 744623313863
- Item #: 9SIVB8UKD21761
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SPI300MP TMPC400-72 GM150-1200850 FSP400-72MP ...
- Model #: 716837086949
- Item #: 9SIVB8UKX59333
- Return Policy: Magicpower Return Policy
Refurbished: PowerEdge C6100 1400W DPS-1200MB A server power supply 04V04J
- Model #: 722954988929
- Item #: 9SIVB8UKAA6610
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For 3Y 650W Switching Power Supply YM-2651Y
- Model #: 744623305745
- Item #: 9SIVB8UKD01906
- Return Policy: Magicpower Return Policy
Refurbished: PSU For GREAT WALL 400W Power Supply BMZ400
- Model #: 753525936865
- Item #: 9SIVB8UKA99483
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SR570 SR590 1U Server ERP WEB Support 8175M
- Model #: 792597983810
- Item #: 9SIVB8UKX56999
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For GOSPOWER 800W Power Supply G1342-0800WHA
- Model #: 703454715031
- Item #: 9SIVB8UKAJ5882
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CRPS redundant power supply DPS-1200AB-16 B 2U 1200W
- Model #: 716837092056
- Item #: 9SIVB8UKX61360
- 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.
