Power Supplies - Showing 1921 - 1944 of 17942 Products
Refurbished: KHACHIMO RH1288 2285 2288 V2 R520 750W Switching Power Supply ...
- Model #: 744623307749
- Item #: 9SIVB8UKD06462
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for network switching power supply DD501M53.5-2M1 53.5V
- Model #: 792597723294
- Item #: 9SIVRWKKXD8753
- Return Policy: Nytke team Return Policy
Refurbished: For GIN-3500V GIN-3600V GIN-3800V
- Model #: 752804574286
- Item #: 9SIVRWKKXB1836
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO MINI E-2018 NC-2008 200W Switching Power Supply DLP-315F
- Model #: 744623302348
- Item #: 9SIVB8UKCV8221
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for Optiplex 760 780 980DT Stair Power Supply L255P-01 AC255AD-00 ...
- Model #: 792597706341
- Item #: 9SIVRWKKXD3218
- Return Policy: Nytke team Return Policy
Refurbished: For DPS-600AB-8A Video Server 1U600W Power POE Power Supply
- Model #: 722954733581
- Item #: 9SIVB8UKAA5969
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DPS-300AB-58 B Industrial Power Supply HK300-41GP
- Model #: 716837095668
- Item #: 9SIVB8UKX62600
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for PM-F20-AC800W Power Supply
- Model #: 792597712816
- Item #: 9SIVRWKKXD4820
- Return Policy: Nytke team Return Policy
Refurbished: For 6 Pins 160W 600 705 800 G2 Power Supply DPS-160AB-5A PA-1161-2
- Model #: 726727732351
- Item #: 9SIVRWKKXA3522
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 12th generation 7010 3910 3710 3991 T3660 XPS8950 7000MT power ...
- Model #: 716837089698
- Item #: 9SIVB8UKX60495
- Return Policy: Magicpower Return Policy
Refurbished: ePCSA-650P ePCSA-500P-X2S 650W
- Model #: 753525986884
- Item #: 9SIVB8UKAA8687
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for MS3000 MS2000 VT450AB220A 450W Storage Power Supply
- Model #: 716837098027
- Item #: 9SIVB8UKX63070
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 6 + 4P Power Supply PA-1181-10AC PA-2251-2AB 180w 250w 400w ...
- Model #: 792597706211
- Item #: 9SIVRWKKXD3243
- Return Policy: Nytke team Return Policy
Refurbished: New Power Supply 300W Power Supply EVM-3016-00
- Model #: 703454714683
- Item #: 9SIVB8UKAJ5752
- Return Policy: Magicpower Return Policy
Refurbished: PAC1000S56-DB 1000W AC PoE power module
- Model #: 703454722909
- Item #: 9SIVB8UKAJ6738
- Return Policy: Magicpower Return Policy
Refurbished: For TDK-LAMBDA HWS300-5 Switching Power Supply Module 5V/60A
- Model #: 753525985597
- Item #: 9SIVSY0KUT7679
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For DH-DVR5416-L 16-Way 960H Hard Disk Recorder 4-Bay Power Supply
- Model #: 722954727603
- Item #: 9SIVB8UKAA7424
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 500W Switching Power Supply FSH091
- Model #: 744623310558
- Item #: 9SIVB8UKD12088
- Return Policy: Magicpower Return Policy
Refurbished: Output 5V 20A 100W Power Supply For PWB-793G power panel ZWS100AF-5/J
- Model #: 753525991185
- Item #: 9SIVB8UKAA8008
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for D430 D14-300P1A FSP300-40AABA HK400-11PP Desktop Power ...
- Model #: 792597982462
- Item #: 9SIVB8UKX56660
- Return Policy: Magicpower Return Policy
Refurbished: 24V 20A 480W Rail Power Supply DRP024V480W1AA EOE13010007
- Model #: 703454716632
- Item #: 9SIVB8UKAJ6079
- Return Policy: Magicpower Return Policy
Refurbished: XW6400 405349-001 412848-001 DPS-575AB A 575W Workstation Power ...
- Model #: 724780182663
- Item #: 9SIVB8UKA98908
- Return Policy: Magicpower Return Policy
Refurbished: C3KX-PWR-1100WAC 3750XPOE 3560X 1100W Power Supply
- Model #: 753525949056
- Item #: 9SIVB8UKAA0079
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO T260 G2 600W Switching Power Supply DPS-600MB Y 36001735
- Model #: 744623307862
- Item #: 9SIVB8UKD06463
- 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.
