Power Supplies - Showing 2161 - 2184 of 17938 Products
Refurbished: For LSQM1DC650 H3C PSR650D Power Module 650W
- Model #: 722954729812
- Item #: 9SIVTFFKXZ7537
- Return Policy: Zienroylein Return Policy
Refurbished: 1Pcs for 700W FSP700-SAG1 700W CPU Dual 8P Computer Power Supply
- Model #: 716837091011
- Item #: 9SIVB8UKX61009
- Return Policy: Magicpower Return Policy
Refurbished: 400W Power Supply PWR-4430-AC 341-0653-01
- Model #: 753525987799
- Item #: 9SIVB8UKAA8777
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS fo ENP-7130B2 300W/EFAP-M301 flex small 1U industrial control server ...
- Model #: 792597716586
- Item #: 9SIVRWKKXD6582
- Return Policy: Nytke team Return Policy
Refurbished: A5E00104867 SV-AC/DC Original For Siemens IPC Power Supply
- Model #: 703454925010
- Item #: 9SIVB8UKA98719
- Return Policy: Magicpower Return Policy
Refurbished: AX150 Power Supply PN: 071-000-457
- Model #: 722954725289
- Item #: 9SIVB8UKAA7185
- Return Policy: Magicpower Return Policy
Refurbished: FP2 48V 3KW FRONT END RECT HE 380875 Original For Eltek Power Supply ...
- Model #: 722954737404
- Item #: 9SIVB8UKAA6363
- Return Policy: Magicpower Return Policy
Refurbished: Power Module PAC2000S54-CE
- Model #: 722954721816
- Item #: 9SIVB8UKAA6843
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R410 R415 D480E-S0 DPS-480CB A 0H410J Server Power Supply
- Model #: 792597724567
- Item #: 9SIVRWKKXD9059
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for X306M power supply 24R2673 24R2674 39Y7295 API4FS40-030L
- Model #: 726099252303
- Item #: 9SIVRWKKXD1623
- Return Policy: Nytke team Return Policy
Refurbished: Switching Power Supply SMU02B
- Model #: 753525935288
- Item #: 9SIVB8UKA99315
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 280W Power Supply HK380-12GP PC6001 DPS-280FBA ...
- Model #: 744623300573
- Item #: 9SIVB8UKCU6774
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CPCI AC-3U-350 Power Supply AC-3U-300C
- Model #: 716837090229
- Item #: 9SIVB8UKX60600
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 495W Power Supply 7315446 DS495SPE-3
- Model #: 759950249075
- Item #: 9SIVB8UKDF9559
- Return Policy: Magicpower Return Policy
Refurbished: 150W Switching Power Supply PAC150-WA
- Model #: 753525941678
- Item #: 9SIVB8UKAA4998
- Return Policy: Magicpower Return Policy
Refurbished: T3610 T5610 D685EF-00 F685EF-00 WPVG2 685W
- Model #: 724780777999
- Item #: 9SIVB8UKAA7606
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For EVOC ATX 810 820 250W Switching Power Supply PS-7270F ...
- Model #: 744623301211
- Item #: 9SIVB8UKCV8109
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for XPS8930 850W 1000W Power Supply Aurora R5 R6 R7 R8 R9
- Model #: 792597726998
- Item #: 9SIVB8UKX32585
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PDC150WA Communication Power Module
- Model #: 792597718030
- Item #: 9SIVRWKKXD7007
- Return Policy: Nytke team Return Policy
Refurbished: LEB100F-0524 R For COSEL Switching Power Supply Output 5V 5A/24V 4A (7A)
- Model #: 724780778828
- Item #: 9SIVB8UKAA6663
- Return Policy: Magicpower Return Policy
Refurbished: For PWR-150-AC 12V12.5A power supply
- Model #: 752804575573
- Item #: 9SIVRWKKXB1992
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply MURATA 1600W Power Supply D1U-W-1600-12-HC2C
- Model #: 703454716236
- Item #: 9SIVB8UKAJ6055
- Return Policy: Magicpower Return Policy
Refurbished: For 1400W power supply PS-2142-2L
- Model #: 726099253942
- Item #: 9SIVRWKKXD2072
- Return Policy: Nytke team Return Policy
Refurbished: 3620i DC48V 700W Switching Power Supply H700ED-S0 0C0X78
- Model #: 753525943351
- Item #: 9SIVSY0KUU3160
- Return Policy: LiAnMengYuShangDian 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.
