Power Supplies - Showing 2065 - 2088 of 17946 Products
Refurbished: KHACHIMO ITX 150W Switching Power Supply FSP150-50FGNBI
- Model #: 744623311555
- Item #: 9SIVB8UKD12236
- Return Policy: Magicpower Return Policy
Refurbished: For C6600-CB50E20 1400W Knife Box Power Supply GW-ERP1U1400C-SG ...
- Model #: 726727775822
- Item #: 9SIVRWKKXA5085
- Return Policy: Nytke team Return Policy
Refurbished: 500W Switching Power Supply R48-500A
- Model #: 753525941159
- Item #: 9SIVB8UKAA4937
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO CUS100MB 28V 2.9A 100W Power Supply CUS100MB-28/A ...
- Model #: 759950246968
- Item #: 9SIVB8UKDA9448
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for EFRP-300 Power Supply Module 300W Power Supply EFRP-300
- Model #: 792597709120
- Item #: 9SIVRWKKXD3972
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 3080 5080 7080 XE3 3890 3690 3881 Power supply 500W H500EPM-00
- Model #: 716837089131
- Item #: 9SIVB8UKX60302
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP200-50SHNCA 200W All-in-One SFX/M-ATX/HTPC Small Chassis ...
- Model #: 792597716456
- Item #: 9SIVRWKKXD6578
- Return Policy: Nytke team Return Policy
Refurbished: For t430 R530 Server 450W Power Supply 0H3DKF AC450E-S0
- Model #: 726727817546
- Item #: 9SIVRWKKXB0827
- Return Policy: Nytke team Return Policy
Refurbished: For Router NE40-2 NE40-4 MA5200G-2 MA5200G-4 DC NEPS800-D
- Model #: 722954728334
- Item #: 9SIVB8UKAA7492
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-2K04A-1R Server Power Supply 2000W
- Model #: 726099253720
- Item #: 9SIVRWKKXD1953
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply NFS40-7912 100-24VAC
- Model #: 753525990812
- Item #: 9SIVB8UKAA7912
- Return Policy: Magicpower Return Policy
Refurbished: For 0Y5W2H 033K6J SP-PCM01 SC2000/SC4020 580W Power Supply
- Model #: 722954732829
- Item #: 9SIVB8UKAA5869
- Return Policy: Magicpower Return Policy
Refurbished: PSU For SEVENTEAM 750W Power Supply ST-750P-AF
- Model #: 753525944921
- Item #: 9SIVB8UKA99565
- Return Policy: Magicpower Return Policy
Refurbished: IPC DC Power Supply A5E30947477-H3
- Type: ATX
- Model #: 703454739624
- Item #: 9SIVSY0KUV2581
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 400W Power Supply PWR-4430-AC 341-0653-01
- Model #: 753525987799
- Item #: 9SIVB8UKAA8777
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PSU For Liteon Pazer 700W Switching Power Supply PS-7701-2 ...
- Model #: 744623300276
- Item #: 9SIVB8UKCU6734
- Return Policy: Magicpower Return Policy
Refurbished: For Weida ACE-R150 Industrial Computer Power Supply ACE-R15001 ...
- Model #: 722954722233
- Item #: 9SIVB8UKAA6909
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for MR482000MH-ZJ Communication Power Supply ZHR481800G | M ...
- Model #: 792597720835
- Item #: 9SIVRWKKXD7983
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for P720/P740 VRM Regulator Module 74Y9189
- Model #: 726099252549
- Item #: 9SIVRWKKXD1827
- Return Policy: Nytke team Return Policy
Refurbished: DL180SE G6 T04 T05 48V 600W Power Supply HSTNS-PF04-1 681926-401 ...
- Model #: 753525935257
- Item #: 9SIVB8UKA99348
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply For Great Wall CRPS 800W For GW-CRPS800
- Model #: 722954987090
- Item #: 9SIVB8UKAA6417
- Return Policy: Magicpower Return Policy
Refurbished: For RMS-6 DMX800 Storage Power Supply 071-000-326 7000672-0000
- Model #: 726727816747
- Item #: 9SIVRWKKXB0981
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 495W Power Supply 7315446 DS495SPE-3
- Model #: 759950249075
- Item #: 9SIVB8UKDF9559
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply for CPR-1421-2M1LF 12V 116A 1400W
- Model #: 753525957334
- Item #: 9SIVB8UKAA8973
- 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.
