Power Supplies - Showing 2329 - 2352 of 17941 Products
Refurbished: JPSU-1600W-AC-AFO 1600W 740-054405 QFX10002 Power Supply
- Model #: 724780182960
- Item #: 9SIVB8UKA98974
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Module 1450W 48V 25A HD4825-3
- Model #: 724780181734
- Item #: 9SIVSY0KUT5083
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO DC 280W Power Supply PSR05-D
- Model #: 759950249303
- Item #: 9SIVB8UKDF9581
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 600W Switching Power Supply HK701-11PEP
- Model #: 744623305172
- Item #: 9SIVB8UKD01870
- Return Policy: Magicpower Return Policy
Refurbished: 1500 24V/50A 230Vac For ELTEK Power Supply Module 241114.300
- Model #: 753525954920
- Item #: 9SIVB8UKAA0289
- Return Policy: Magicpower Return Policy
Refurbished: For SER75020 400-750V/15KW
- Model #: 752804578888
- Item #: 9SIVRWKKXB2313
- Return Policy: Nytke team Return Policy
Refurbished: X3400 X3500 X3650 Server Power DPS-853AB A 39Y7377 39Y7378
- Model #: 722954735172
- Item #: 9SIVB8UKAA6099
- Return Policy: Magicpower Return Policy
Refurbished: For PA-1151-2H power module YM-1161B H3C5500-52C-EI switch power
- Type: ATX
- Model #: 703454724217
- Item #: 9SIVSY0KUS3996
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 400W Power Supply PWR-4430-AC 341-0653-01
- Model #: 753525987799
- Item #: 9SIVB8UKAA8777
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for TNF5APIU power module
- Model #: 792597720316
- Item #: 9SIVRWKKXD7836
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO CP E SNT 100W 15V 6.6A 100W 7760052199
- Model #: 759950240065
- Item #: 9SIVB8UKDA0350
- Return Policy: Magicpower Return Policy
Refurbished: For t430 R530 Server 450W Power Supply 0H3DKF AC450E-S0
- Model #: 726727817546
- Item #: 9SIVRWKKXB0827
- Return Policy: Nytke team Return Policy
Refurbished: For ARUBR PSU-350-AC DCJ3501-03PLF 350W POE Power Supply
- Model #: 722954722929
- Item #: 9SIVB8UKAA6937
- Return Policy: Magicpower Return Policy
Refurbished: 510S 700-24AGR 280G2 400G4 180W PC Power Supply PA-1181-7 PCH018 ...
- Model #: 753525935592
- Item #: 9SIVB8UKA99386
- Return Policy: Magicpower Return Policy
Refurbished: ZWQ130-5224/A Multiple Output Switching Power Supply
- Model #: 724780182922
- Item #: 9SIVB8UKA98959
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO R730 R630 730XD R530 T630 495W Power Supply 0GRTNK 09338D ...
- Model #: 744623314853
- Item #: 9SIVB8UKD21884
- Return Policy: Magicpower Return Policy
Refurbished: TDK-LAMBDA HWS600 24V 600W Switching Power Supply HWS600-24
- Type: ATX
- Model #: 753525940411
- Item #: 9SIVSY0KUV7762
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: RG-PA70I Power Module RG-S5750-H Series
- Model #: 722954731549
- Item #: 9SIVB8UKAA5753
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for K39 DPS-350AB-12 A E86365-007 FLEX Industrial Control Server Small ...
- Model #: 792597726035
- Item #: 9SIVRWKKXD9482
- Return Policy: Nytke team Return Policy
Refurbished: For Communication Power Monitoring Module SMU01A
- Model #: 722954726675
- Item #: 9SIVT8HKWF3083
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO N3024 N3048 200W Power Supply DPS-200PB-191 A ...
- Model #: 726099222740
- Item #: 9SIVB8UKCU6258
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ACE450F 450W Power Supply AC4-BMN2H-00
- Model #: 759950240218
- Item #: 9SIVB8UKDA0364
- Return Policy: Magicpower Return Policy
Refurbished: POWER 2050W Power Supply NE075AC24A
- Model #: 703454716816
- Item #: 9SIVB8UKAJ6107
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U IPC X79 X99 24Pin+10Pin+8Pin 500W Switching Power Supply ...
- Model #: 744623301655
- Item #: 9SIVB8UKCV8190
- 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.
