Power Supplies - Showing 1897 - 1920 of 17938 Products
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA AIphaII-650 650W Power Supply ...
- Model #: 759950245824
- Item #: 9SIVB8UKDA9315
- Return Policy: Magicpower Return Policy
Refurbished: RP2620 RP3440 Power Supply 0950-4119 0950-4621 A6874A DPS-650AB A
- Model #: 722954726095
- Item #: 9SIVB8UKAA7266
- Return Policy: Magicpower Return Policy
Refurbished: For NXA-PAC-500W-B Nexus 3064 Series Power Supply 341-0547-01 1pcs
- Model #: 726727722055
- Item #: 9SIVRWKKXA2126
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for PWS-1K62A-1R Power Supply 1600W
- Model #: 792597723164
- Item #: 9SIVRWKKXD8777
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 800W Switching Power Supply MRG-3800V-R
- Model #: 744623312293
- Item #: 9SIVB8UKD19558
- Return Policy: Magicpower Return Policy
Refurbished: For FSP300-70MU FSP500-702UH FSP500-702UC FSP500-702UN Power ...
- Model #: 726727818291
- Item #: 9SIVRWKKXB1260
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA 12V25A Power Supply R70005 ...
- Model #: 759950245343
- Item #: 9SIVB8UKDA9268
- Return Policy: Magicpower Return Policy
Refurbished: For R1V-2275V Server Power Supply 275W
- Model #: 726727723663
- Item #: 9SIVRWKKXA2298
- Return Policy: Nytke team Return Policy
Refurbished: 1100W Switching Power Supply PSSF112102A 800563-00-07
- Model #: 753525946543
- Item #: 9SIVB8UKA99759
- Return Policy: Magicpower Return Policy
Refurbished: D14-280P1A 796348-001,796418-001,PCE015,Prodesk 600
- Model #: 703454720523
- Item #: 9SIVB8UKAJ6511
- Return Policy: Magicpower Return Policy
Refurbished: PAC-350WA-B 350W CloudEngine 6800 Switching Power Supply
- Model #: 753525948776
- Item #: 9SIVB8UKAA0013
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for RKW03-70R 3.3V 70A Switching Power Supply 1.6-4.3v
- Model #: 792597720194
- Item #: 9SIVRWKKXD7840
- Return Policy: Nytke team Return Policy
Refurbished: 02CTMC 2CTMC T7920 1400W Server Power Supply H1400-EF
- Type: ATX
- Model #: 703454737705
- Item #: 9SIVSY0KUT3909
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For MW SE-600-24 600W 24V 25A Power Supply
- Model #: 753525957839
- Item #: 9SIVB8UKAA9027
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for X3-2 7038476 7047410 7060951 7079395 AA27020L
- Model #: 792597713035
- Item #: 9SIVRWKKXD4832
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for SR250 SR258 Cold Power Supply 03KK316
- Model #: 792597985258
- Item #: 9SIVB8UKX57237
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For DPU60D-N06A1 3000W
- Model #: 753525990508
- Item #: 9SIVB8UKAA7935
- Return Policy: Magicpower Return Policy
Refurbished: For H3C PA-2521-1H POE Power Supply PSL520-AD GPL520-ADH 5120
- Model #: 722954733550
- Item #: 9SIVSY0KUT5113
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for T410 server power supply H525E-00 0YN637 0M331J 525W T3400
- Model #: 726099252747
- Item #: 9SIVRWKKXD1797
- 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: Z440 700W Workstation Power Supply 719795-004 858854-001 DPS-700AB
- Model #: 703454717516
- Item #: 9SIVB8UKAJ6176
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for F5 5000S 5050S 7000S 73-610-125 PWR-0227-02/03/04/05 Power ...
- Model #: 726099252563
- Item #: 9SIVRWKKXD1634
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For 24V14.6A 350W S8JC-Z35024C-802
- Model #: 759950240836
- Item #: 9SIVB8UKDA0455
- Return Policy: Magicpower Return Policy
Refurbished: For ELTEK 241246.500 Powerpack 48/5800 Communication Power Supply
- Model #: 703454717233
- Item #: 9SIVB8UKAJ6171
- 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.
