Power Supplies - Showing 2353 - 2376 of 17938 Products
Refurbished: For EFAP-552 Switching Power Supply 550W 2U Server
- Model #: 703454718957
- Item #: 9SIVB8UKAJ6333
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 9010 9030 3340 5348 185W PC Power Supply B185EA-00 ...
- Model #: 744623313634
- Item #: 9SIVB8UKD21748
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO B460 P340 510 E77 M6600 10Pin 380W Power Supply PCK014 ...
- Model #: 726099221644
- Item #: 9SIVB8UKCU6109
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For NEMIC-LAMBDA 50W Power Supply LWT50H-525 ...
- Model #: 759950241062
- Item #: 9SIVB8UKDA0448
- Return Policy: Magicpower Return Policy
Refurbished: t3600 t3610t5810t5600t5610 power supply 425w
- Model #: 722954988646
- Item #: 9SIVB8UKAA6593
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For Server Power S26113-E627-V70-1 S19-500P1A 500W
- Model #: 792597703951
- Item #: 9SIVRWKKXD2444
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for ETP48100-B1 Power Supply 48V100AH OLT
- Model #: 716837094623
- Item #: 9SIVB8UKX62292
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for chassis power supply GW-T200SPWC-TF GW-TFX200AHD
- Model #: 716837089629
- Item #: 9SIVB8UKX60468
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12V29A 350W Power Supply VAT-H350-12-ST-D ...
- Model #: 759950245220
- Item #: 9SIVSY0KUS0049
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For PA-4131-2 34-1891-01 Power Supply
- Model #: 752804573487
- Item #: 9SIVRWKKXB1708
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PAC550S55V5-CN 550W switching power supply
- Model #: 716837093305
- Item #: 9SIVB8UKX61708
- Return Policy: Magicpower Return Policy
Refurbished: For LAMBDA NNS30-15 15V 3.4A Power Frequency Linear Regulated Power ...
- Model #: 724780778248
- Item #: 9SIVB8UKAA7634
- Return Policy: Magicpower Return Policy
Refurbished: 1200W Power Supply C240 M3 UCSC-PSU2-1200 V02 341-0472-02 ...
- Model #: 753525986549
- Item #: 9SIVB8UKAA8598
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Power Supply FLEX-0130D
- Model #: 759950248566
- Item #: 9SIVB8UKDF9501
- Return Policy: Magicpower Return Policy
Refurbished: For A-300FAY-5 5V60A 300W ultra-thin full-color LED display power supply
- Model #: 703454721780
- Item #: 9SIVB8UKAJ6630
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ITX FLEX NAS Small 1U A4 K39 S3 RTX2070 5700 RX5600XT ...
- Model #: 744623305936
- Item #: 9SIVB8UKD01931
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP500-60WS2 GW-6000 GW-A500BHE-ZC BTX-600SP EP1A4651A
- Model #: 716837086123
- Item #: 9SIVB8UKX58912
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for HK280-72PP PCE025 FSP180-20TGBAB TFX 10-pin small power ...
- Model #: 792597706402
- Item #: 9SIVRWKKXD3256
- 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 SUN Fire V480 Server Power Supply, 300-1480-05, Tyco A157
- Model #: 722954726040
- Item #: 9SIVB8UKAA7246
- Return Policy: Magicpower Return Policy
Refurbished: EX3400-48P Switch Power Supply JPSU-920-AC-AFO 640-060601
- Model #: 722954727580
- Item #: 9SIVB8UKAA7417
- Return Policy: Magicpower Return Policy
Refurbished: For RG-M6220-AC460E-F switching power module, suitable for S6220
- Model #: 752804574507
- Item #: 9SIVRWKKXB1837
- Return Policy: Nytke team Return Policy
Refurbished: For MSA2040/MSA2050 power supply 814665-001 7001540-j000
- Model #: 792597703012
- Item #: 9SIVRWKKXD2217
- Return Policy: Nytke team Return Policy
Refurbished: T440 R540 Server Corded Power Supply L450E-S1 RJ4N9
- Model #: 722954722769
- Item #: 9SIVB8UKAA6922
- 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.
