Power Supplies - Showing 2257 - 2280 of 17940 Products
Refurbished: 1Pcs for DC Converter EC4820/M DC/DC Module
- Model #: 792597719310
- Item #: 9SIVRWKKXD7507
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for RG-PA800I-F RG-S6510 Switch Power Supply CSU800AP-3-300
- Model #: 716837084396
- Item #: 9SIVB8UKX58095
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PowerEdge 350 125W Power Supply DPS-125FB A 753752-007
- Model #: 759950246418
- Item #: 9SIVB8UKDA9396
- Return Policy: Magicpower Return Policy
Refurbished: MPF920 Computer Built-in Floppy Drive 1.44M FDD Embroidery Machine
- Model #: 722954987731
- Item #: 9SIVB8UKAA6473
- Return Policy: Magicpower Return Policy
Refurbished: For 300-1501/SUN V440 Server Power Supply DPS-680CB A ...
- Model #: 722954734366
- Item #: 9SIVB8UKAA6033
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-250AB-16 B SPI250F4BB DPS-250AB-16B Small 1UFLEX ...
- Model #: 716837086185
- Item #: 9SIVB8UKX58937
- Return Policy: Magicpower Return Policy
Refurbished: C240 M4 1200W For PS-2122-2S UCSC-PSU2V2-1200W 341-0631-02 ...
- Model #: 703454716793
- Item #: 9SIVB8UKAJ6098
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Optiplex 3060 3080 3470 SFF 6Pin+4Pin*2 200W Power Supply ...
- Model #: 759950240324
- Item #: 9SIVB8UKDA0398
- Return Policy: Magicpower Return Policy
Refurbished: For T1700MT 3020 9020 power supply H290AM-006P graphics card D365EM-00 ...
- Model #: 726727732870
- Item #: 9SIVRWKKXA3662
- Return Policy: Nytke team Return Policy
Refurbished: Power Rectifier Module GERM4815TEM
- Model #: 722954727993
- Item #: 9SIVB8UKAA7483
- Return Policy: Magicpower Return Policy
Refurbished: 86GNR PE6650 Server Power Supply 900W 086GNR 7000245-0000
- Model #: 722954725890
- Item #: 9SIVB8UKAA7234
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For P1H-5500V High Quality Fully Tested Fast Ship
- Type: ATX
- Model #: 703454729083
- Item #: 9SIVSY0KUT5112
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For G9 P840 P440 MC96 782960-002 827349-001 878643-001
- Model #: 726727816983
- Item #: 9SIVRWKKXB0669
- Return Policy: Nytke team Return Policy
Refurbished: For 260W Power Supply HK360-71PP PCH015 PCK012 FSP260-20TLA PA- ...
- Model #: 726727733716
- Item #: 9SIVRWKKXA3866
- Return Policy: Nytke team Return Policy
Refurbished: NSS-PL30-AD 748896-001 748283-201 746073-001
- Model #: 703454925409
- Item #: 9SIVB8UKA98729
- Return Policy: Magicpower Return Policy
Refurbished: For B545 B355 B455 B540 B550 B350 HKF2002-3C APC006 Power Supply
- Model #: 726727729054
- Item #: 9SIVRWKKXA2830
- Return Policy: Nytke team Return Policy
Refurbished: For H3C psr350-a10 Power Supply
- Model #: 722954733659
- Item #: 9SIVSY0KUU1107
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For SS-400HS SS-301HT SS-350BS SS-400ES SS-460ES SS-600ES Power ...
- Model #: 726727818246
- Item #: 9SIVRWKKXB1303
- Return Policy: Nytke team Return Policy
Refurbished: For power supply 550W 180W PA-5181-3A PA-1181-10AC PA-2251-2AB
- Model #: 752804572596
- Item #: 9SIVRWKKXA2127
- Return Policy: Nytke team Return Policy
Refurbished: PSB250Q-J3 For CWT 250W Switching Power Supply
- Model #: 753525954265
- Item #: 9SIVB8UKAA0219
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For ITX FLEX Switching Power Supply Nas Small 1U K39 Rated ...
- Model #: 744623313054
- Item #: 9SIVB8UKD21706
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO M4600 4650 M4200f M4900 T6900c 10Pin 180W Power Supply ...
- Model #: 744623317946
- Item #: 9SIVB8UKD64722
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 121W Switching Power Supply ACE-121A
- Model #: 744623303116
- Item #: 9SIVB8UKCW6048
- Return Policy: Magicpower Return Policy
Refurbished: For Server Power Supply S6502 S6502XG 7502 LS8M5220PWR PSR300-A
- Model #: 724780183592
- Item #: 9SIVB8UKA99030
- 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.
