Power Supplies - Showing 2257 - 2280 of 17940 Products
Refurbished: 1PCS for 48V power supply PWS-1K60D-1R server power supply
- Model #: 792597704880
- Item #: 9SIVRWKKXD2622
- Return Policy: Nytke team Return Policy
Refurbished: For 5V40A LED Display Power Supply GW-EP200WV5AA Model 200W
- Model #: 752804575153
- Item #: 9SIVRWKKXB1959
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For GRE -56V19.63A 1110W Power Supply ...
- Model #: 745635674959
- Item #: 9SIVB8UKDA0224
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ML350PG8 Gen8 667278/638929/660351/667259-001
- Model #: 792597709151
- Item #: 9SIVRWKKXD4017
- Return Policy: Nytke team Return Policy
Refurbished: PAC-350WB-L Power Module 350W Supports AR22/32/6280/6300 Routing ...
- Model #: 722954732423
- Item #: 9SIVB8UKAA5851
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply YM-5411B 9274CSU-0010/CP-1121R2
- Model #: 792597985326
- Item #: 9SIVB8UKX57214
- Return Policy: Magicpower Return Policy
Refurbished: W2PSA2230 2200W AC Power Supply
- Model #: 722954732362
- Item #: 9SIVB8UKAA5830
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 380 desktop power supply 780MT power supply 305W MK9GY
- Model #: 792597984237
- Item #: 9SIVB8UKX57068
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 7050 3040 6Pin 180W Power Supply TDFTP 0TDFTP H180ES-00
- Model #: 759950248764
- Item #: 9SIVB8UKDF9531
- Return Policy: Magicpower Return Policy
Refurbished: 9300 Switch Power Supply PWR-C1-350WAC-P High-Quality
- Model #: 753525984163
- Item #: 9SIVB8UKAA9059
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP350-20GSV DPS-300AB- 81B
- Model #: 716837083160
- Item #: 9SIVB8UKX57480
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 480 400 G4 280 282 285 288 600 800 G3 G1 G2 4Pin 260W Power ...
- Model #: 744623303529
- Item #: 9SIVB8UKCW6120
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for S5300V3 V5 02311DEP PAC800D1205-CE 800W AC Power Supply
- Model #: 716837097778
- Item #: 9SIVB8UKX62971
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-450EB ATX server industrial computer computer power supply
- Model #: 792597716241
- Item #: 9SIVRWKKXD6423
- Return Policy: Nytke team Return Policy
Refurbished: ASR9000 Series Switches 341-0518-01 250W ASR-920-PWR-D
- Model #: 753525957228
- Item #: 9SIVB8UKAA8979
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For MURATA 12V 250W Power Supply MVAC250-12F
- Model #: 759950240515
- Item #: 9SIVB8UKDA0381
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 7070 3050 3650 3670 7050 7060 5090 360W460W 500W Power Supply
- Model #: 792597728411
- Item #: 9SIVB8UKX33143
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply 3Y 920W Power Supply YPEB0920AM 1A04P10
- Model #: 703454715376
- Item #: 9SIVB8UKAJ5873
- Return Policy: Magicpower Return Policy
Refurbished: For P340 K M930T Power Supply HK600-11PP PCK010 SP50H29598 ...
- Model #: 726727732641
- Item #: 9SIVRWKKXA3547
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO R740 T640 R840 R940 C4130 2000W Switching Power Supply ...
- Model #: 744623306292
- Item #: 9SIVB8UKD01946
- Return Policy: Magicpower Return Policy
Refurbished: For CL380 1850R 1600 Power Supply PS-6231-2A 283608-001 283606-001
- Model #: 722954724084
- Item #: 9SIVB8UKAA7055
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PSF250MP-60 Hard Disk Video Recorder Power Supply SFXA5201A ...
- Model #: 792597982646
- Item #: 9SIVB8UKX56782
- Return Policy: Magicpower Return Policy
Refurbished: For 02311TLF RH1288H 2288H V5 Server 900W Power Module PAC900S12-BE
- Model #: 722954723360
- Item #: 9SIVB8UKAA7012
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 400W Switching Power Supply RYT-400U
- Model #: 744623315508
- Item #: 9SIVB8UKD46430
- 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.
