Power Supplies - Showing 2377 - 2400 of 17938 Products
Refurbished: Power HK600-12FP
- Model #: 703454718636
- Item #: 9SIVB8UKAJ6341
- Return Policy: Magicpower Return Policy
Refurbished: DS-7908N-R4 10Pin 150W Power Supply HK250-84PP
- Model #: 703454716229
- Item #: 9SIVB8UKAJ6052
- Return Policy: Magicpower Return Policy
Refurbished: For S1M-5500V 65W Switch Power Adapter
- Model #: 722954721762
- Item #: 9SIVB8UKAA6822
- Return Policy: Magicpower Return Policy
Refurbished: 700W Switching Power Supply PAC-700WA-L
- Model #: 753525942613
- Item #: 9SIVB8UKAA5172
- Return Policy: Magicpower Return Policy
Refurbished: CN2E00PEM 02120532 T8280 OSTA2.0 Power Supply 48v-60
- Model #: 703454719961
- Item #: 9SIVB8UKAJ6430
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For CWT 420W For PSK420N-P4
- Model #: 759950247866
- Item #: 9SIVB8UKDF9420
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S7503 XGBI PSR70-A Power Module 450W
- Model #: 792597714803
- Item #: 9SIVRWKKXD6075
- Return Policy: Nytke team Return Policy
Refurbished: For DC Screen 220V03-220 Switch Charging Module ZE220D03NI-WL-220
- Model #: 722954732256
- Item #: 9SIVB8UKAA5792
- Return Policy: Magicpower Return Policy
Refurbished: For CA01022-0690 371-2219 M8000 M9000 Power Supply
- Model #: 726727775983
- Item #: 9SIVRWKKXA5076
- Return Policy: Nytke team Return Policy
Refurbished: For FC2501SR power supply EMA-BXG100-02-D03 7000224-0000 1PCS
- Model #: 726727728538
- Item #: 9SIVRWKKXA2716
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for T5600 T3600 T3610 T5610 635W 685W Power Supply NVC7F ...
- Model #: 792597983636
- Item #: 9SIVB8UKX56978
- Return Policy: Magicpower Return Policy
Refurbished: C6105 12V 1400W Model: D1200E-S1/S0 RN0HH 0CN35N 10*6PIN
- Model #: 724780777951
- Item #: 9SIVB8UKAA7590
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO XPS 8300 8500 8700 T3630 T3640 T3650 T40 460W Power Supply ...
- Model #: 744623307930
- Item #: 9SIVB8UKD06273
- Return Policy: Magicpower Return Policy
Refurbished: 1 PCS HSP650-S12D Switching Power Supply DC-DC Input 48V-60V 24A Output ...
- Model #: 753525933451
- Item #: 9SIVB8UKA99173
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PWS-2K04A-1R 2000W 10/12 6 + 2P/8P port power supply
- Model #: 792597706815
- Item #: 9SIVRWKKXD3445
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 740-021466/AA24870L Power Supply EX8208
- Model #: 792597714797
- Item #: 9SIVRWKKXD6045
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For Mindong 280W Switching Power Supply AT350-24V-48V
- Model #: 744623310756
- Item #: 9SIVB8UKD12120
- Return Policy: Magicpower Return Policy
Refurbished: R410 R415 Server Power Supply D480E-S0 DPS-480CB A 0H410J
- Model #: 724780779399
- Item #: 9SIVB8UKAA6740
- Return Policy: Magicpower Return Policy
Refurbished: For AIR-PWR-4400-AC Power Supply 101241-04-R 341-0176-01
- Model #: 726727721843
- Item #: 9SIVRWKKXA2138
- Return Policy: Nytke team Return Policy
Refurbished: R4830G1/R4830N2 communication power supply 48V30A
- Model #: 703454721759
- Item #: 9SIVB8UKAJ6664
- Return Policy: Magicpower Return Policy
Refurbished: PDC1000S12-DB 1000W Power Module 5731/6730 Switch
- Model #: 722954721557
- Item #: 9SIVB8UKAA6794
- Return Policy: Magicpower Return Policy
Refurbished: 150W LED Control Device Street Light Drive Power Supply 90-283V0.7A
- Model #: 722954721571
- Item #: 9SIVB8UKAA6802
- Return Policy: Magicpower Return Policy
Refurbished: For ZXDT02-PU V2.5 Communication Power Solar Module ZXDT02
- Model #: 722954726682
- Item #: 9SIVT8HKWF3235
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For DAR850-4812A Power Module PWR850A-POE
- Model #: 722954727849
- Item #: 9SIVB8UKAA7469
- 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.
