Power Supplies - Showing 2113 - 2136 of 17941 Products
Refurbished: 1Pcs for G1401-2000W server power supply 12v CRPS power supply
- Model #: 716837093077
- Item #: 9SIVB8UKX61705
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S5 pca227/222 ps-4181-7 d10-220p1a long small chassis power ...
- Model #: 792597706037
- Item #: 9SIVRWKKXD2863
- Return Policy: Nytke team Return Policy
Refurbished: For HSTNS-PD29 DL360/380 G8 DPS-750AB-3 A 643955-101 750W
- Model #: 752804574699
- Item #: 9SIVRWKKXB1861
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 80 RD630 RD640 530 800W DPS-800RB Power Supply 068-02919
- Model #: 792597712045
- Item #: 9SIVRWKKXD4651
- Return Policy: Nytke team Return Policy
Refurbished: HENGFU HF800W-S 24V33A 800W Switching Power Supply HF800W-S-24
- Type: ATX
- Model #: 753525938678
- Item #: 9SIVSY0KUT7675
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for 7050qx/7060cx D48S1900A PWR-00239-04 Power Supply
- Model #: 716837085669
- Item #: 9SIVB8UKX58652
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for HK300-41GP/SP 200W MATX SFX Small Chassis, Power Supply
- Model #: 792597984114
- Item #: 9SIVB8UKX57067
- Return Policy: Magicpower Return Policy
Refurbished: For MW SD-1000H-48 Single Group Output Converter Power Supply
- Model #: 753525957563
- Item #: 9SIVB8UKAA8974
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power supply for RT-2-522/GF 5V 12V
- Model #: 753525988475
- Item #: 9SIVB8UKAA7662
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 10Pin 300W Power Supply HK400-14PP PCK013 FSP250-30AGBAA ...
- Model #: 744623307503
- Item #: 9SIVB8UKD06465
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 531A31-S4 communication power supply 1U48V60A 48-2000E3
- Model #: 716837095088
- Item #: 9SIVB8UKX62454
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Xyratex storage cabinet power supply SPAXRTX-04G ...
- Model #: 745635673839
- Item #: 9SIVB8UKD64784
- Return Policy: Magicpower Return Policy
Refurbished: For 3650m4 3550M4 550W Server Power 43x3312 43x3311
- Model #: 726727730234
- Item #: 9SIVRWKKXA3250
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for AA26400L or R24-1000 communication power module 27V/36A model ...
- Model #: 792597719891
- Item #: 9SIVRWKKXD7629
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FSP300-40AHBAA CDM200SDA HK400/HK300-11PP
- Model #: 792597714339
- Item #: 9SIVRWKKXD5860
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for RG-PA1200E AC Power Supply 1200W for RG-S8606/S8610/S8614
- Model #: 792597722709
- Item #: 9SIVRWKKXD8592
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for T30U-HY1 Power Supply 3001U-PFC 300W
- Model #: 792597704231
- Item #: 9SIVRWKKXD2525
- Return Policy: Nytke team Return Policy
Refurbished: 300W Switching Power Supply HSP300-S12A
- Model #: 753525941821
- Item #: 9SIVB8UKAA5007
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-1300AB-6 E/J REV; S1F Server Power Supply 1300W
- Model #: 752804578123
- Item #: 9SIVRWKKXB2261
- Return Policy: Nytke team Return Policy
Refurbished: For R900 PE6950 Server Power Supply A1570P-01 1570W HX134
- Model #: 726727818048
- Item #: 9SIVRWKKXB0988
- Return Policy: Nytke team Return Policy
Refurbished: 620W APV SPR1C620 for Array Networks Load Balancing Switch Redundant ...
- Model #: 753525984033
- Item #: 9SIVB8UKAA9055
- Return Policy: Magicpower Return Policy
Refurbished: PSSF132202A H79286-005 12V 1300W Redundant Power Module
- Model #: 722954729973
- Item #: 9SIVSY0KUR7854
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 10 graphics cards 6+2p dual cpu8+8p gold half module 1250w single 12v ...
- Model #: 753525957150
- Item #: 9SIVB8UKAA8952
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 078-000-021 800W SPS CX3-80
- Model #: 716837083573
- Item #: 9SIVB8UKX57584
- 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.
