Power Supplies - Showing 2305 - 2328 of 18348 Products
Refurbished: For CWT PSD250M PSD200M 36V48V72V Wide Voltage Power Supply
- Model #: 722954721373
- Item #: 9SIVB8UKAA6768
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 4.5V40A 200W Switching Power Supply MCP200WS-4.5A-C
- Model #: 744623310527
- Item #: 9SIVB8UKD12121
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DS460S-3 DS460SDC-3 PWR-460DC-R PWR-500DC-F AC/DC Power ...
- Model #: 716837088059
- Item #: 9SIVB8UKX59834
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V10.5A 250W Power Supply NLP250N-99S24CN1J
- Model #: 759950248269
- Item #: 9SIVB8UKDF9480
- Return Policy: Magicpower Return Policy
Refurbished: For X3650 X3400 X3500 Server Power Supply 24R2731 24R2730 1pcs
- Model #: 726727728255
- Item #: 9SIVRWKKXA2723
- Return Policy: Nytke team Return Policy
Refurbished: For 241115.805 Yida Flatpack2 110-125/2000 HE
- Model #: 722954737428
- Item #: 9SIVB8UKAA6365
- Return Policy: Magicpower Return Policy
Refurbished: 400W Power Supply ACE-841AP
- Model #: 753525942057
- Item #: 9SIVB8UKAA5097
- Return Policy: Magicpower Return Policy
Refurbished: For R48300E3 R48-200A3 2000A3 3000A32900U
- Model #: 703454718322
- Item #: 9SIVB8UKAJ6277
- Return Policy: Magicpower Return Policy
Refurbished: 02CTMC 2CTMC T7920 1400W Server Power Supply H1400-EF
- Type: ATX
- Model #: 703454739204
- Item #: 9SIVSY0KUT2627
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 071-000-460 7000958-Y000 CX3-80 1200W HJ75
- Model #: 753525987003
- Item #: 9SIVB8UKAA8686
- Return Policy: Magicpower Return Policy
Refurbished: For Lineage Power Communication Module CP1800AC52-H Switch Power ...
- Model #: 722954723087
- Item #: 9SIVT8HKWF2620
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: Switching Power Supply For FSP 1U FSP250-60WS1 250W
- Model #: 753525949360
- Item #: 9SIVB8UKAA0122
- Return Policy: Magicpower Return Policy
Refurbished: For Mining Power Supply for APW7-12-1800 1800W APW7+ S9 L3+ 852 10*6P ...
- Model #: 724780183509
- Item #: 9SIVB8UKA98997
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for FSP460-60PFG Power Supply FSP400-60GLC
- Model #: 716837096672
- Item #: 9SIVB8UKX62822
- Return Policy: Magicpower Return Policy
Refurbished: For 390 790 9010MT Power Supply H265AM-00 AC265AM-00 053N4 GVY79
- Model #: 726727729757
- Item #: 9SIVRWKKXA3205
- Return Policy: Nytke team Return Policy
Refurbished: PSU For FSP Replace Etasis 9277CPSU-0010 200W Power Supply EFAP-200 ...
- Model #: 753525935035
- Item #: 9SIVB8UKA99314
- Return Policy: Magicpower Return Policy
Refurbished: For RH2288V2 RH5885V3 server 1200W power supply 02130985 ...
- Model #: 726727817232
- Item #: 9SIVRWKKXB1164
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO X3650 DC 700W Switching Power Supply 7001377-Y000 ...
- Model #: 744623301358
- Item #: 9SIVB8UKCV8118
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ACE450F 450W Power Supply AC4-BMN2H-00
- Model #: 759950240218
- Item #: 9SIVB8UKDA0364
- Return Policy: Magicpower Return Policy
Refurbished: SSP-300SUG SS-250SU, etc. Small 1U 250W 300W Power Supply
- Model #: 722954736230
- Item #: 9SIVB8UKAA6234
- Return Policy: Magicpower Return Policy
Refurbished: For LAMBDA 12V 100W 8.5A AC100-120V Power Supply For HK100A-12
- Model #: 753525990119
- Item #: 9SIVB8UKAA7822
- Return Policy: Magicpower Return Policy
Refurbished: MMC100-1 For COSEL Original Disassembly Switching Power Supply 5V+-12V ...
- Model #: 753525957204
- Item #: 9SIVB8UKAA8971
- Return Policy: Magicpower Return Policy
Refurbished: 25.3V10A 253W Power Supply DPS-253CB A
- Model #: 703454716168
- Item #: 9SIVB8UKAJ6028
- Return Policy: Magicpower Return Policy
Refurbished: New PRO MAX 180W 24V 7.5A 1478120000 Switching Power Supply
- Model #: 753525948110
- Item #: 9SIVB8UKA99994
- 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.
