Power Supplies - Showing 2305 - 2328 of 17938 Products
Refurbished: 1Pcs for 875W server power supply R11A2871A APM12V010F
- Model #: 716837091271
- Item #: 9SIVB8UKX61021
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R4815G1 R4830G1 communication power supply
- Model #: 792597718344
- Item #: 9SIVRWKKXD7198
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for AX2-5300FB-2S 650W Industrial Control Server Power Supply
- Model #: 792597715992
- Item #: 9SIVRWKKXD6272
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1KW air-cooled drying industrial microwave power supply
- Model #: 745635674294
- Item #: 9SIVB8UKDA0169
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 250W power supply with -5V power supply FSP250-70PFU 610L 610H ...
- Model #: 792597705351
- Item #: 9SIVRWKKXD2737
- Return Policy: Nytke team Return Policy
Refurbished: FSB015 740-043886 650W For Juniper JPSU-650W-DC-AFO Network Switch ...
- Model #: 753525948035
- Item #: 9SIVB8UKA99963
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For POWERLD 500W Power Supply PSD500S55
- Model #: 759950243080
- Item #: 9SIVB8UKDA8941
- Return Policy: Magicpower Return Policy
Refurbished: MMC50U 50W Switching Power Supply MMC50U-2
- Model #: 753525992038
- Item #: 9SIVB8UKAA8206
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS PWR-C1-350WAC For Switch Power Supply 3850 341-0562-01 AA26270
- Model #: 753525934137
- Item #: 9SIVB8UKA99200
- Return Policy: Magicpower Return Policy
Refurbished: For Sun 300-1489-03 Netra S1/T1 N120 130W DC Power Supply DPS-129AB-3 A
- Model #: 722954725258
- Item #: 9SIVB8UKAA7221
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 520 7703 8203-E4A P6 950W Switching Power Supply ...
- Model #: 744623314433
- Item #: 9SIVB8UKD21859
- Return Policy: Magicpower Return Policy
Refurbished: For AD202M48-1M4A 48V50A Switch Power Supply
- Model #: 722954721366
- Item #: 9SIVB8UKAA6813
- Return Policy: Magicpower Return Policy
Refurbished: For X335 server power supply 49P2089 49P2090 API1FS29 332W
- Model #: 726727728248
- Item #: 9SIVRWKKXA2708
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO For FSP 80plus Bronze -5V 1U 350W Switching Power Supply ...
- Model #: 744623305233
- Item #: 9SIVB8UKD01845
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DC 800W Power Supply 3FSEC280016 740-045932 JNPR800D932
- Model #: 759950244513
- Item #: 9SIVB8UKDA9212
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-550AB-42 640-107107 Power switch power supply
- Model #: 792597704453
- Item #: 9SIVRWKKXD2532
- Return Policy: Nytke team Return Policy
Refurbished: S3518CN s3618CN Power Supply Desktop Pc6013 Pc6012 Mini Chassis Power ...
- Model #: 722954734243
- Item #: 9SIVB8UKAA5987
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12V 13.9A 175W Power Supply CLC175US12 CLC175US
- Model #: 759950246487
- Item #: 9SIVB8UKDA9424
- Return Policy: Magicpower Return Policy
Refurbished: For S26113-E567-V50-02 DPS-500XB A Server Power Supply
- Model #: 726727722925
- Item #: 9SIVRWKKXA2375
- Return Policy: Nytke team Return Policy
Refurbished: 800W Switching Power Supply PWS-804P-1R
- Model #: 753525944280
- Item #: 9SIVSYTKUS9813
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: 1PCS for T630 T640 R740/XD R640 T640 1100W 1600W Power Supply 95HR5 ...
- Model #: 792597983681
- Item #: 9SIVB8UKX56998
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for EDPS-300AB B 240w Switching Power Supply
- Model #: 792597712656
- Item #: 9SIVRWKKXD4853
- Return Policy: Nytke team Return Policy
Refurbished: Waterproof Power Supply For EUM-200S105DG 200W
- Model #: 753525990706
- Item #: 9SIVB8UKAA7915
- Return Policy: Magicpower Return Policy
Refurbished: FN5270 M4 M5 800W Power Supply FSG032
- Model #: 753525946666
- Item #: 9SIVB8UKA99760
- 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.
