Power Supplies - Showing 1945 - 1968 of 17940 Products
Refurbished: For SUN 300-1295 A5000 A5100 A5200 Power EP071265-F 3001295-02 310W
- Model #: 722954735295
- Item #: 9SIVB8UKAA6098
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for LED Power Supply LP.188W1.806-HC Switching Power Supply
- Model #: 792597723669
- Item #: 9SIVRWKKXD8928
- Return Policy: Nytke team Return Policy
Refurbished: For SUN Storagetek SL500 Tape Library Power Supply 314-3457-03 ...
- Model #: 726727815535
- Item #: 9SIVRWKKXB0463
- Return Policy: Nytke team Return Policy
Refurbished: M48300N1 48V/10A To 12V/24V Power Supply
- Model #: 753525955835
- Item #: 9SIVB8UKAA8815
- Return Policy: Magicpower Return Policy
Refurbished: DC 1200W Power Supply NC55-2KW-DCRV 341-100516-01
- Model #: 703454714959
- Item #: 9SIVB8UKAJ5779
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Infortrend IFRP-532NF IFRP-532NFE 530W 9273ECPSu
- Model #: 792597728244
- Item #: 9SIVB8UKX32951
- Return Policy: Magicpower Return Policy
Refurbished: Industrial Medical Equipment Power Supply 12V/4.7A 55W For CONDOR ...
- Model #: 724780779153
- Item #: 9SIVB8UKAA6699
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1U 200W Switching Power Supply UPF200-AA
- Model #: 744623315782
- Item #: 9SIVB8UKD46444
- Return Policy: Magicpower Return Policy
Refurbished: For EFAP-481VS 1U server power supply, dual CPU8P cold power supply
- Model #: 726727816341
- Item #: 9SIVRWKKXB0458
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for ZXD2400 Communication Power Module V4.3 V4.1 V4.0 48V 50A Power ...
- Model #: 792597718573
- Item #: 9SIVRWKKXD7194
- Return Policy: Nytke team Return Policy
Refurbished: PSSF132202A H79286-005 12V 1300W Redundant Power Module
- Model #: 722954729973
- Item #: 9SIVSY0KUR7854
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: TDK-LAMBDA JWT100 100W Power Suppy JWT100-522/A JWT100-522 A ...
- Model #: 703454716618
- Item #: 9SIVB8UKAJ6103
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2960X-24TS-L Power Supply 341-0529-02 PA-1600-4B-LF ...
- Model #: 745635674607
- Item #: 9SIVB8UKDA0183
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For M10-4 M10-4S Power Supply CA01022-0820 7088114 2640W MAX
- Model #: 716837096238
- Item #: 9SIVB8UKX62737
- Return Policy: Magicpower Return Policy
Refurbished: For CPR-1221-1M2LF 1200W Server Power Supply CPR-1221-1M21
- Model #: 726727734119
- Item #: 9SIVRWKKXA4032
- Return Policy: Nytke team Return Policy
Refurbished: T7400 T7500 1100W Switching Power Supply H1100EF-00 N1100EF-00 G821T ...
- Model #: 703454717318
- Item #: 9SIVB8UKAJ6148
- Return Policy: Magicpower Return Policy
Refurbished: For Z820 workstation power supply DPS-1125AB A 716646-002 792340-001
- Model #: 792597702596
- Item #: 9SIVRWKKXD2049
- Return Policy: Nytke team Return Policy
Refurbished: For 3060 3070 3668 3671 5055 5070 5090 7071MT Power B260EBM-00
- Model #: 752804572718
- Item #: 9SIVRWKKXA2123
- Return Policy: Nytke team Return Policy
Refurbished: For EFRP-300 Power Supply 300W EFRP-300
- Model #: 726727817478
- Item #: 9SIVRWKKXB0853
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for -5V power supply P1G-6300P P1U-6150P 300W
- Model #: 716837088905
- Item #: 9SIVB8UKX60117
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R48-2900U Communication Power Module 48V50A 2900W
- Model #: 716837095057
- Item #: 9SIVB8UKX62443
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PS- 2252-3 12.5v200A2500w Power Supply
- Model #: 792597719150
- Item #: 9SIVRWKKXD7484
- Return Policy: Nytke team Return Policy
Refurbished: R1CA2122A Monitoring Server Redundant Power Module 1200W
- Model #: 722954729362
- Item #: 9SIVB8UKAA5522
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO CRPS 860W Switching Power Supply G1W-3860V
- Model #: 744623310466
- Item #: 9SIVB8UKD12097
- 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.
