Power Supplies - Showing 2257 - 2280 of 17933 Products
Refurbished: For SUN V890 Server Power Supply 7000817-0000 36833 300-1622-05 1629W
- Model #: 722954726071
- Item #: 9SIVB8UKAA7258
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for POE Recorder DPS-200PB-185B POE Power Supply
- Model #: 792597715268
- Item #: 9SIVRWKKXD6233
- Return Policy: Nytke team Return Policy
Refurbished: 390 790 990 3010 7010 9010MT Power Supply L300PM-00 HU300PM-00
- Model #: 722954987120
- Item #: 9SIVB8UKAA6428
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For EATON NPR48
- Model #: 759950246302
- Item #: 9SIVB8UKDA9360
- Return Policy: Magicpower Return Policy
Refurbished: For C240 M4 PS-2222-2S UCSC-PSU2V2-1200W 341-0631 Server Power ...
- Model #: 726727816228
- Item #: 9SIVRWKKXB0677
- Return Policy: Nytke team Return Policy
Refurbished: Fo power supply DS460S-3-003 -002 -004
- Model #: 726099252990
- Item #: 9SIVRWKKXD1830
- Return Policy: Nytke team Return Policy
Refurbished: For 2U Industrial Computer Server Power Supply P2G-6460P 6510 Rated 460W
- Model #: 722954737664
- Item #: 9SIVB8UKAA6366
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO S5624P S5648P 130W Power Supply PSL130-AD-H
- Model #: 759950245398
- Item #: 9SIVB8UKDA9286
- Return Policy: Magicpower Return Policy
Refurbished: For Z440 719795-005 858854-001 DPS-700AB-1 A
- Model #: 752804579700
- Item #: 9SIVRWKKXB2473
- Return Policy: Nytke team Return Policy
Refurbished: For Communication Power Module PSR1800-56D
- Model #: 722954726736
- Item #: 9SIVT8HKWF3259
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1PCS For FSP1600-20FM 1600W server power supply
- Model #: 792597703593
- Item #: 9SIVRWKKXD2285
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO HF400W-ST 48V8.3A 400W Power Supply HF400W-ST-48
- Model #: 759950242120
- Item #: 9SIVB8UKDA8800
- Return Policy: Magicpower Return Policy
Refurbished: For DS-C24-300AC Switching Power Supply
- Model #: DS-C24-300AC
- Item #: 9SIVRWKKXB2575
- Return Policy: Nytke team Return Policy
Refurbished: For R2A-BV035 U1A-B10350-DR 350W Server Redundant Power Supply ...
- Model #: 726727722970
- Item #: 9SIVRWKKXA2361
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for Power PN 3602.01571X03
- Model #: 716837086062
- Item #: 9SIVB8UKX58936
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For GREAT WALL 3.3V60A 300W Power Supply ...
- Model #: 759950241741
- Item #: 9SIVB8UKDA8744
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For FSP MATX SFX 300W Medical Power Supply FSP300-60GHS ...
- Model #: 744623313702
- Item #: 9SIVB8UKD21776
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 600 800 G2 6Pin 160W Power Supply PA-1161-2 DPS-160AB-5 A ...
- Model #: 744623308678
- Item #: 9SIVB8UKD06373
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-665-PQ 665W Power Supply
- Model #: 726727731651
- Item #: 9SIVRWKKXA3353
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for server power adapter P2F-5400V P2H-5400V 400W power supply
- Model #: 726099252631
- Item #: 9SIVRWKKXD1804
- Return Policy: Nytke team Return Policy
Refurbished: ISR4451/K9 Series Switches 341-0492-01 PWR-4450-AC
- Model #: 753525956962
- Item #: 9SIVB8UKAA8925
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply For SNP-9549-MV 100-240VAC SNP-9549
- Model #: 753525989533
- Item #: 9SIVB8UKAA7792
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 80plus Bronze 270W Supply ST-270FUB ENP-7130B2 BES-630C
- Model #: 744623299464
- Item #: 9SIVB8UKCU6623
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 3PAR 720 74 SP-BAT01-6C 683542-001 0974242-02 05 Storage ...
- Model #: 792597725489
- Item #: 9SIVRWKKXD9231
- 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.
