Power Supplies - Showing 1969 - 1992 of 17993 Products
Refurbished: For GW-EPS1U400WB 400W server power supply
- Model #: 726727821246
- Item #: 9SIVRWKKXB1530
- Return Policy: Nytke team Return Policy
Refurbished: For SPI180LE power supply
- Model #: 792597703401
- Item #: 9SIVRWKKXD2304
- Return Policy: Nytke team Return Policy
Refurbished: For Power Supply H3C PSR320-A Switch 300W AD671M12-2M1B 661W
- Model #: 722954737176
- Item #: 9SIVSY0KUT7916
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for switching power supply uMP16S-S2Q-S2Q-SKW-11 ...
- Model #: 792597721665
- Item #: 9SIVRWKKXD8302
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for medical power supply, color ultrasound machine power supply S22PSU ...
- Model #: 716837088356
- Item #: 9SIVB8UKX59812
- Return Policy: Magicpower Return Policy
Refurbished: For HPCOMPAQ ML530G1 ML570G1 Power Supply 144596-001 157793-001
- Model #: 722954724039
- Item #: 9SIVB8UKAA7035
- Return Policy: Magicpower Return Policy
Refurbished: SSG-550M-SH Redundant Power Module 3Y YM-7421D
- Model #: 722954730825
- Item #: 9SIVB8UKAA5665
- Return Policy: Magicpower Return Policy
Refurbished: PSU For SH SB-4120X 400W Power Supply SHRD-400P-P
- Model #: 753525941876
- Item #: 9SIVB8UKAA5028
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO OptiPlex760 960 580 780 235W Power Supply L235P-01 L235P-00 ...
- Model #: 744623300597
- Item #: 9SIVB8UKCU6781
- Return Policy: Magicpower Return Policy
Refurbished: New For Artesyn Power Supply LPS43
- Model #: 753525991994
- Item #: 9SIVB8UKAA8228
- Return Policy: Magicpower Return Policy
Refurbished: For 30-10047-01 API2FS01 DS25 server power supply 500W
- Model #: 726727816396
- Item #: 9SIVRWKKXB0662
- Return Policy: Nytke team Return Policy
Refurbished: Power PS-8501-2 VB 80 supports 8+8 graphics card
- Model #: 703454721308
- Item #: 9SIVB8UKAJ6582
- Return Policy: Magicpower Return Policy
Refurbished: For PSR380-24A GPR380-24A H3C Switch Power Supply
- Model #: 722954730689
- Item #: 9SIVSY0KUU3224
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO PSU For S8PS 24V 150W Power Supply S8PS-15024CD
- Model #: 759950247651
- Item #: 9SIVB8UKDF9432
- Return Policy: Magicpower Return Policy
Refurbished: DPS-1200AB-8A server power supply 12V 100A 1200W power supply
- Model #: 703454722923
- Item #: 9SIVB8UKAJ6748
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For HITRON 620W For HVP620-D5401
- Model #: 759950240430
- Item #: 9SIVB8UKDA0396
- Return Policy: Magicpower Return Policy
Refurbished: X306M Power Supply API4FS40-030L 24R2674 39Y7295
- Model #: 722954722127
- Item #: 9SIVB8UKAA6867
- Return Policy: Magicpower Return Policy
Refurbished: 2100W Power Supply PWR-2KW-DC-V2 DHF-2DC-2100W-V 341-0400-02 ...
- Model #: 753525942040
- Item #: 9SIVB8UKAA5093
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DS1050-3 SRX1400 Server Power Module 1050W
- Model #: 792597722839
- Item #: 9SIVRWKKXD8616
- Return Policy: Nytke team Return Policy
Refurbished: For 280 282 288 400 480 600 PRO G3 G4 Power Supply PA-5551-2HA ...
- Model #: 726727733549
- Item #: 9SIVRWKKXA3671
- Return Policy: Nytke team Return Policy
Refurbished: PowerEdge 830 840 PE840 Power GD278 NPS-420ABE
- Model #: 722954722455
- Item #: 9SIVB8UKAA6902
- Return Policy: Magicpower Return Policy
Refurbished: For R525 R512 G2 3Y YM-2451C 36001872 450W Server Power Supplies
- Model #: 753525984293
- Item #: 9SIVB8UKAA9061
- Return Policy: Magicpower Return Policy
Refurbished: DS760SL-3 760W Server Redundant Power Supply
- Model #: 722954730498
- Item #: 9SIVB8UKAA5628
- Return Policy: Magicpower Return Policy
Refurbished: For 550W server power supply S15-550P1A power supply S550E003L 1pcs
- Model #: 752804578901
- Item #: 9SIVRWKKXB2292
- Return Policy: Nytke team 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.
