Power Supplies - Showing 2353 - 2376 of 17946 Products
Refurbished: KHACHIMO SFX MATX 350W Switching Power Supply SS-350SFE
- Model #: 744623306223
- Item #: 9SIVB8UKD01959
- Return Policy: Magicpower Return Policy
Refurbished: GX100 GX110 GX200 MT Large Power Supply NPS-200PB-73 PS-5201-7D
- Model #: 722954722578
- Item #: 9SIVB8UKAA6901
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3650 DC 700W Switching Power Supply 7001377-Y000 ...
- Model #: 744623301358
- Item #: 9SIVB8UKCV8118
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 790DT 990dt 390DT Computer host TFX small chassis power supply ...
- Model #: 792597706129
- Item #: 9SIVRWKKXD2919
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply 1600W DS1600SPE-3
- Model #: 753525985429
- Item #: 9SIVB8UKAA9212
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ASR1002 high-end core router with ASR1000-ESP5 ASR1002-X dual ...
- Model #: 792597726592
- Item #: 9SIVRWKKXD9627
- Return Policy: Nytke team Return Policy
Refurbished: Communication Power Supply GEPS4845F-15220EP
- Model #: 703454717851
- Item #: 9SIVB8UKAJ6230
- Return Policy: Magicpower Return Policy
Refurbished: CRPS 2U AC/DC 1200W Power Supply ENR-0912
- Model #: 753525943986
- Item #: 9SIVB8UKAA5350
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Z2 800 880 G4 G5 G6 4Pin 550W Power Supply PA-5551-1HA ...
- Model #: 744623301334
- Item #: 9SIVB8UKCV8111
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 03058981 10GbFE 5800 V5 10GB 4 Ports
- Model #: 792597708765
- Item #: 9SIVRWKKXD3946
- Return Policy: Nytke team Return Policy
Refurbished: 400W Power Supply PWR-4430-AC 341-0653-01
- Model #: 753525987799
- Item #: 9SIVB8UKAA8777
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply 3Y 350W Power Supply YM-6351N YM-6351NAR
- Model #: 759950243905
- Item #: 9SIVB8UKDA9090
- Return Policy: Magicpower Return Policy
Refurbished: For P2H-5400V 400W Redundant Power Supply
- Model #: 726727731934
- Item #: 9SIVRWKKXA3361
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DPR48/50-E-DGC communication power supply ESR-48/56F Z ...
- Model #: 792597721818
- Item #: 9SIVRWKKXD8303
- Return Policy: Nytke team Return Policy
Refurbished: For 468929-004 508148/9-001 DPS-850DB A DPS-1050DB A Z800 Power ...
- Model #: 752804574408
- Item #: 9SIVRWKKXB1876
- Return Policy: Nytke team Return Policy
Refurbished: For X3250M3 351W server power supply 49Y4661 49Y4663
- Model #: 726727730531
- Item #: 9SIVRWKKXA3175
- Return Policy: Nytke team Return Policy
Refurbished: DL320E G8 Cold Plug Power 748336-101 DPS-250AB-95 A 751909-001
- Model #: 722954734298
- Item #: 9SIVB8UKAA6007
- 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: 1PCS for 12-Pin desktop small power supply GW-T200SPWC-TF ...
- Model #: 792597706181
- Item #: 9SIVRWKKXD3229
- Return Policy: Nytke team Return Policy
Refurbished: PJA600F-24 600W INPUT AC100-240V 50-60Hz 7.5A OUTPUT 24V 25A ...
- Model #: 753525948868
- Item #: 9SIVB8UKAA0050
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DPS-500LB A AF500B00438 300-2166 J4200 500W AC Power Supply
- Model #: 716837098256
- Item #: 9SIVB8UKX63080
- Return Policy: Magicpower Return Policy
Refurbished: For R48300E3 R48-200A3 2000A3 3000A32900U
- Model #: 703454718322
- Item #: 9SIVB8UKAJ6277
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U 270W Switching Power Supply FSP270-60LE FSP220-60LB ...
- Model #: 744623316598
- Item #: 9SIVB8UKD46529
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U Switching Power Supply ACE-816AP
- Model #: 744623306537
- Item #: 9SIVB8UKD06224
- 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.
