Power Supplies - Showing 2017 - 2040 of 17941 Products
Refurbished: KHACHIMO 150W Power Supply NSP3-150-D2E
- Model #: 759950248757
- Item #: 9SIVB8UKDF9526
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO TM-350 PC-015 Wide Voltage Small Power Supply 80LPLUS
- Model #: 745635673860
- Item #: 9SIVB8UKD64796
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for HK300-83FP PS-5201-02VF a4600r A6000R A6800v Power Supply
- Model #: 716837090120
- Item #: 9SIVB8UKX60610
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DS-7932N-K4 7916N-E4 Hard Disk Video Recorder Power Supply 4 Disc ...
- Model #: 792597717156
- Item #: 9SIVRWKKXD6875
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for EVRNA300CE-A-1 Automotive Relay 24VDC300A DC Contactor
- Model #: 792597718375
- Item #: 9SIVRWKKXD7050
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for DS800-G25 DPS-770GB A Switching Power Supply 770W
- Model #: 716837097853
- Item #: 9SIVB8UKX63002
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X326M X325 411W Switching Power Supply API3FS10 74P4349 ...
- Model #: 744623315737
- Item #: 9SIVB8UKD46424
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO GX50 GX150 SD 110W Switching Power Supply NPS-110CB A 854JE
- Model #: 744623315584
- Item #: 9SIVB8UKD46414
- Return Policy: Magicpower Return Policy
Refurbished: New Power ModuleFor SUPLET 48V 20W Power Supply LAP20-220S48
- Model #: 703454714690
- Item #: 9SIVB8UKAJ5759
- Return Policy: Magicpower Return Policy
Refurbished: For B520ER2 10088 250W Power Supply PS-3251-01 DPS-250AB-71A ...
- Model #: 726727728910
- Item #: 9SIVRWKKXA2850
- Return Policy: Nytke team Return Policy
Refurbished: For SPI600GLN FSP650-80GLC FSP700-80GLC Industrial Control Power ...
- Model #: 722954729843
- Item #: 9SIVB8UKAA5568
- Return Policy: Magicpower Return Policy
Refurbished: For Goldpower Switching Power Supply GPR4820A
- Model #: 753525936513
- Item #: 9SIVB8UKA99490
- Return Policy: Magicpower Return Policy
Refurbished: For 1200W DPS-1200AB-26 A 80PLUS Platinum Certified ATX
- Model #: 752804575146
- Item #: 9SIVRWKKXB1947
- Return Policy: Nytke team Return Policy
Refurbished: T610 R710 870W server power supply A870P-00 07NVX8 OYFG1C
- Model #: 722954988691
- Item #: 9SIVB8UKAA6572
- Return Policy: Magicpower Return Policy
Refurbished: Z8 G4 Power Supply 851385-001 DPS-1450A B A 1700W
- Model #: 703454718742
- Item #: 9SIVB8UKAJ6346
- Return Policy: Magicpower Return Policy
Refurbished: R4850G2 G6 N2 N6 R4875G1 G5 Communication Power Supply Rectifier Module ...
- Model #: 722954726606
- Item #: 9SIVT8HKWF2605
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for T5820 Workstation Power Supply 425W DPS-425FB A D425EF-03 ...
- Model #: 716837088639
- Item #: 9SIVB8UKX60110
- Return Policy: Magicpower Return Policy
Refurbished: For server power supply GW-CRPS550N2C RG-PA550I-F
- Model #: 752804577867
- Item #: 9SIVRWKKXB2280
- Return Policy: Nytke team Return Policy
Refurbished: YM-2821A 820W Original For 3Y Server Redundant Power Supply
- Model #: 724780183837
- Item #: 9SIVB8UKA99033
- Return Policy: Magicpower Return Policy
Refurbished: For EFRP-S2753 A620r-G Server Redundant Power Supply
- Model #: 752804576013
- Item #: 9SIVRWKKXB2035
- Return Policy: Nytke team Return Policy
Refurbished: New 1478180000 PRO MAX3 240W 24V 10A Switching Power Supply
- Model #: 724780181963
- Item #: 9SIVB8UKA98867
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for Power Supply L300E-00, PS-6301-3DA Y737P
- Model #: 792597985241
- Item #: 9SIVB8UKX57233
- Return Policy: Magicpower Return Policy
Refurbished: 53.3V Power Supply HDZ2001-3B-53B
- Model #: 703454715260
- Item #: 9SIVB8UKAJ5875
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 341-0441-01 UCSB-PSU-2500ACPL AHF-2DC-2500W-PE power ...
- Model #: 716837097518
- Item #: 9SIVB8UKX62962
- 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.
