Power Supplies - Showing 2305 - 2328 of 17940 Products
Refurbished: For YKD-6300DC24 Industrial Control Power Supply ACE-828C ACE-828C-RS ...
- Model #: 722954736575
- Item #: 9SIVB8UKAA6270
- Return Policy: Magicpower Return Policy
Refurbished: For DH-NVR616-64 channel 16-bit hard disk video recorder power supply ...
- Model #: 752804576778
- Item #: 9SIVRWKKXB2099
- Return Policy: Nytke team Return Policy
Refurbished: 13.8V 60A 750W Server Retrofit Power Subwoofer Radio Power
- Model #: 722954735677
- Item #: 9SIVB8UKAA6160
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 7040 3650 3040 3046 Power Supply B240NM-00 H240EM-00 L240AM
- Model #: 792597727933
- Item #: 9SIVB8UKX32970
- Return Policy: Magicpower Return Policy
Refurbished: For CWT PSB250Q-J3 Power Supply 250W PSB250Q-J3
- Model #: 703454719817
- Item #: 9SIVB8UKAJ6424
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Peak 400W Switching Power Supply SD-3450U/2U ...
- Model #: 744623312460
- Item #: 9SIVB8UKD19580
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO CN2E01PEMG
- Model #: 759950243226
- Item #: 9SIVB8UKDA8951
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DL180 DL160 DL80 ML150 G9 900W Power Supply HSTNS-PL48-B ...
- Model #: 744623317151
- Item #: 9SIVB8UKD64503
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Communication Power Supply For 48V 12000W FSPSJ6-1200WS
- Model #: 759950242359
- Item #: 9SIVB8UKDA8798
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3550M4 M5 X3650M4 M5 1300W Power Supply 700-013496-J200 ...
- Model #: 744623310152
- Item #: 9SIVB8UKD12081
- Return Policy: Magicpower Return Policy
Refurbished: 0950-3651 DPS-250DB L DLT8000 Tape Library Power
- Model #: 722954734434
- Item #: 9SIVB8UKAA6062
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for R2G-6300P-R 300W redundant power module, server
- Model #: 716837090519
- Item #: 9SIVB8UKX60843
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for YM-2651R 650W server redundant power supply YH-5651U ...
- Model #: 792597711512
- Item #: 9SIVRWKKXD4568
- Return Policy: Nytke team Return Policy
Refurbished: EPS30-4815AF 30A dual 15A OLT48V power supply
- Model #: 703454717387
- Item #: 9SIVB8UKAJ6133
- Return Policy: Magicpower Return Policy
Refurbished: 3050 5050 7050 3250 3665 3660 3667 3668 3669 6Pin 240W Power Supply ...
- Model #: 753525941173
- Item #: 9SIVB8UKAA4946
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply NLP40-7610J 100-24VAC
- Model #: 753525990027
- Item #: 9SIVB8UKAA7839
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for EPS-1285GA2 850W server power supply tested well
- Model #: 792597715879
- Item #: 9SIVRWKKXD6380
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply STL1FANAF
- Model #: 759950244353
- Item #: 9SIVB8UKDA9134
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3080 5080 7080 7070 3990 3881 6Pin 260W Power Supply 0T5K83 ...
- Model #: 744623299846
- Item #: 9SIVB8UKCU6632
- Return Policy: Magicpower Return Policy
Refurbished: S5328C-EI-24S 53 Series Power Module S5300 S5700 CX7M1PWD
- Model #: 703454718100
- Item #: 9SIVB8UKAJ6280
- Return Policy: Magicpower Return Policy
Refurbished: For FLEX CMM 68Y7030 68Y7032 00AN232 46W0923 0955
- Model #: 726727816198
- Item #: 9SIVRWKKXB0674
- Return Policy: Nytke team Return Policy
Refurbished: For Megmeet 48V Inverter Power Supply 1000W MEGAPOWER1000INVT 48V to ...
- Model #: 753525985832
- Item #: 9SIVB8UKAA8506
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP400-80AGNBR 400W Power Supply
- Model #: 716837084129
- Item #: 9SIVB8UKX57709
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for SLIM800DS 800W Server Power Supply
- Model #: 716837084860
- Item #: 9SIVB8UKX58417
- 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.
