Power Supplies - Showing 2089 - 2112 of 17943 Products
Refurbished: M1F-5500V 500W Server Power Supply Module
- Model #: 753525949858
- Item #: 9SIVB8UKAA0167
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for BPS-2504-4TU industrial computer power supply with P8 P9 interface
- Model #: 792597714186
- Item #: 9SIVRWKKXD5853
- Return Policy: Nytke team Return Policy
Refurbished: For DC Screen 220V03-220 Switch Charging Module ZE220D03NI-WL-220
- Model #: 722954732256
- Item #: 9SIVB8UKAA5792
- Return Policy: Magicpower Return Policy
Refurbished: For Z600 Power Supply 650W DPS-725AB A 482513-003 508548-001
- Model #: 726727733297
- Item #: 9SIVRWKKXA3705
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for GIN-6350P R2G-6350P 350W power supply
- Model #: 792597982585
- Item #: 9SIVB8UKX56757
- Return Policy: Magicpower Return Policy
Refurbished: FLXA5181A 180W For Acbel Cash Register Power Supply
- Model #: 753525987393
- Item #: 9SIVB8UKAA8741
- Return Policy: Magicpower Return Policy
Refurbished: For 23-1000059-01 SPABRCD-01G 6520 switching power supply
- Model #: 752804573555
- Item #: 9SIVRWKKXB1693
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 4P 500W Power Supply DPS-500AB-32 A DPS-500AB-32A ...
- Model #: 744623299471
- Item #: 9SIVB8UKCU6626
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP180-50FRB ACE-4525AP PMP120F-13-2 FSP220-51C1 ...
- Model #: 716837086970
- Item #: 9SIVB8UKX59345
- Return Policy: Magicpower Return Policy
Refurbished: 500W Switching Power Supply ST-500PFL
- Model #: 753525942194
- Item #: 9SIVB8UKAA5106
- Return Policy: Magicpower Return Policy
Refurbished: For SUN Workstation Power APS-112 300-1357 SUN B2000 power, 3001357-05
- Model #: 722954735240
- Item #: 9SIVB8UKAA6128
- Return Policy: Magicpower Return Policy
Refurbished: ES0W2PSD0150 150W 5710/5720/6720SI
- Model #: 722954726279
- Item #: 9SIVB8UKAA7283
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For FSP DC 48V 400W Switching Power Supply FSP400-60DL
- Model #: 744623308340
- Item #: 9SIVB8UKD06289
- Return Policy: Magicpower Return Policy
Refurbished: PDC1000S12-DB 1000W Power Module 5731/6730 Switch
- Model #: 722954721557
- Item #: 9SIVB8UKAA6794
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO New Communication Power Supply For RM4830H RM4830N
- Model #: 759950242915
- Item #: 9SIVB8UKDA8920
- Return Policy: Magicpower Return Policy
Refurbished: R1V-2275V Server Power Supply 275W
- Model #: 722954731822
- Item #: 9SIVB8UKAA5768
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DPS-450AB-26 48V Server Power Supply
- Model #: 716837083740
- Item #: 9SIVB8UKX57603
- Return Policy: Magicpower Return Policy
Refurbished: For AC-PSR650-A-H3 H3C PSR650-A AC Power Module 650W
- Model #: 726099253263
- Item #: 9SIVRWKKXD1868
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DPS550AB-11L Server Power Supply DPS-550AB-19A Redundant ...
- Model #: 792597715077
- Item #: 9SIVRWKKXD6092
- Return Policy: Nytke team Return Policy
Refurbished: For FSP090-DMAB1 FSP090-DMCB1 FSP090-DVCA1 19V4.74A Power Supply
- Model #: 726727819816
- Item #: 9SIVRWKKXB1454
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 810W Power Supply M1W-2810V
- Model #: 744623313245
- Item #: 9SIVB8UKD21733
- Return Policy: Magicpower Return Policy
Refurbished: SP 48/3000 53.5V/53A Communication Power Rectifier Module
- Model #: 753525986792
- Item #: 9SIVT8HKWF3044
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1pcs for MTW-5660V 660W MTW-5661V
- Model #: 716837090465
- Item #: 9SIVB8UKX60644
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R12-1K6P2A Server NF8470M3 1600W Power Module
- Model #: 792597710645
- Item #: 9SIVRWKKXD4367
- Return Policy: Nytke team 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.
