Power Supplies - Showing 1993 - 2016 of 17943 Products
Refurbished: For T5820 T7820 T7920 950W H950EF-00
- Model #: 726099254314
- Item #: 9SIVRWKKXD2051
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DPS-1000GB A 41A9765 41A9764 1000w 41A9710 41A9709
- Model #: 792597710690
- Item #: 9SIVRWKKXD4362
- Return Policy: Nytke team Return Policy
Refurbished: 150W NS-5400-PWR-AC Firewall Module Power Supply
- Model #: 753525932478
- Item #: 9SIVB8UKA99079
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP300-60ATV 610 Computer 300WATX
- Model #: 792597708062
- Item #: 9SIVRWKKXD3699
- Return Policy: Nytke team Return Policy
Refurbished: For FLEX-1500 NAS Host Desktop Small 1U Power Supply 150W
- Model #: 703454720479
- Item #: 9SIVB8UKAJ6499
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 310W power supply M415 00PC787 5P51D77146 PCJ007
- Model #: 716837092209
- Item #: 9SIVB8UKX61378
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CRPS power supply DPS-650AB-16 DPS-550AB 2U 650W
- Model #: 716837091035
- Item #: 9SIVB8UKX61027
- Return Policy: Magicpower Return Policy
Refurbished: Fo switching power supply PSR70-A 450W S7506 S6506R
- Model #: 752804574132
- Item #: 9SIVRWKKXB1780
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for PWR-C45-1300ACV Catalyst 4500 1300W AC
- Model #: 792597726431
- Item #: 9SIVRWKKXD9631
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO For SPI 1U 350W Switching Power Supply SPI350U4BG ...
- Model #: 744623306117
- Item #: 9SIVB8UKD01956
- Return Policy: Magicpower Return Policy
Refurbished: 310W Guangbao 24-pin Power Supply PS-5311-7VR2-ROHS
- Model #: 722954733338
- Item #: 9SIVB8UKAA5925
- Return Policy: Magicpower Return Policy
Refurbished: For ATX-3000+ wide-screen Version GW330 Computer Industrial Control Host ...
- Model #: 722954735325
- Item #: 9SIVB8UKAA6110
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for NE40-4 switching power supply NEPS600 48V AC power module
- Model #: 792597723485
- Item #: 9SIVRWKKXD8619
- Return Policy: Nytke team Return Policy
Refurbished: Power 95882-02/04/06 HS-PSU-850-AC-INT DS850-3-002
- Model #: 722954731150
- Item #: 9SIVB8UKAA5693
- Return Policy: Magicpower Return Policy
Refurbished: R48-2000A3 48V30A/1740W high-efficiency Power Supply Rectifier Module
- Model #: 722954732966
- Item #: 9SIVB8UKAA5917
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO LED Switching Power Supply For INVENTRONICS 20-50V 60W Power ...
- Model #: 759950241512
- Item #: 9SIVB8UKDA8747
- Return Policy: Magicpower Return Policy
Refurbished: For Server Power Supply 6505/6510 23-0000092-02 ALM2M
- Model #: 753525987812
- Item #: 9SIVB8UKAA8774
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS power supply for video recorder FSP200-50GSV
- Model #: 792597715237
- Item #: 9SIVRWKKXD6248
- Return Policy: Nytke team Return Policy
Refurbished: SP2 Basic lndustrial 242100.601 For ELTEK Monitoring Module 0000158715
- Model #: 753525955590
- Item #: 9SIVB8UKAA0325
- Return Policy: Magicpower Return Policy
Refurbished: G3 G4 Z2 86 800 880 PA-4501-1 L07304-001 Power Supply 500W
- Model #: 722954728631
- Item #: 9SIVB8UKAA5427
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Standard 1U 400W Switching Power Supply DPS-400CB A
- Model #: 744623317694
- Item #: 9SIVB8UKD64668
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 600 800 G2 6Pin 160W Power Supply PA-1161-2 DPS-160AB-5 A ...
- Model #: 744623308333
- Item #: 9SIVB8UKD06285
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply Module For EGU01
- Model #: 753525991260
- Item #: 9SIVB8UKAA8039
- Return Policy: Magicpower Return Policy
Refurbished: For S4820 switching power supply 460W DPS-460KB C 0XN7P4 0JR47N JR47N
- Model #: 726727817812
- Item #: 9SIVRWKKXB1208
- 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.
