Power Supplies - Showing 1969 - 1992 of 17942 Products
Refurbished: For X3-2 Sun X4170M3 7 7079395 7047410 AA27020L Power Supply
- Model #: 752804577850
- Item #: 9SIVRWKKXB2264
- Return Policy: Nytke team Return Policy
Refurbished: NetSure 211C46 Power Supply Module For M522B
- Model #: 753525992168
- Item #: 9SIVB8UKAA8218
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 12-pin power supply D15-220P1A PE-3221-1 FSP200-30AHBAA
- Model #: 716837088967
- Item #: 9SIVB8UKX60137
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12Pin 750W Power Supply PA-3751-1
- Model #: 744623312101
- Item #: 9SIVB8UKD19647
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA Vega 650 650W Power Supply ...
- Model #: 759950239922
- Item #: 9SIVB8UKDA0344
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for LSI CVPM05 49571-22 9460 9460-16I 9560 05-50039-00 Array Card ...
- Model #: 792597724239
- Item #: 9SIVRWKKXD9096
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For 3290737-A 3290737-B HDS VSP G200 DKC TDPS-895AB A Power ...
- Model #: 716837096023
- Item #: 9SIVB8UKX62698
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 24V 10.5A 250W Power Supply EMH250PS24 EMH250PS
- Model #: 759950246319
- Item #: 9SIVB8UKDA9364
- Return Policy: Magicpower Return Policy
Refurbished: CX7M1PWA S5700-28C-EI S5328C-EI S5352C-EI Switch AC Power Suppl
- Model #: 753525948493
- Item #: 9SIVB8UKAA0002
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for DS625-3 Power Supply DS625-3-001 Storage Power Supply
- Model #: 792597712762
- Item #: 9SIVRWKKXD4834
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply CXA10-48S05V22-S 100-24VAC
- Model #: 753525989519
- Item #: 9SIVB8UKAA7784
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 10 pin power supply FSP180-20TLA FSP260-20TLA FSP260-21TLA
- Model #: 716837089001
- Item #: 9SIVB8UKX60297
- Return Policy: Magicpower Return Policy
Refurbished: FLXA5181A 180W For Acbel Cash Register Power Supply Small 1U Power Supply
- Model #: 753525956894
- Item #: 9SIVB8UKAA8899
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for PJA600F-24 switching power supply
- Model #: 792597720699
- Item #: 9SIVRWKKXD7985
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 3XY3J HD2W8 6R2MV V0YN7 42M49 L/AC/H300EPS-01 MJXT6
- Model #: 716837085386
- Item #: 9SIVB8UKX58643
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Switching Power Supply For NEMIC-LAMBDA 12V 27A 300W For ...
- Model #: 759950248771
- Item #: 9SIVB8UKDF9534
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for TFX 300W 220S 230S 530 Power Supply
- Model #: 716837092377
- Item #: 9SIVB8UKX61331
- Return Policy: Magicpower Return Policy
Refurbished: For 400W GW-EPS400WB 1U
- Model #: 752804577386
- Item #: 9SIVRWKKXB2208
- Return Policy: Nytke team Return Policy
Refurbished: G3 280MT Pro PCK017 L70042-004 002 Desktop Power Supply 180W
- Model #: 703454720752
- Item #: 9SIVB8UKAJ6554
- Return Policy: Magicpower Return Policy
Refurbished: For B320I B325 340 345 350 355 520 Power Supply APH005 DPS-250AB-71 B
- Model #: 726727732382
- Item #: 9SIVRWKKXA3527
- Return Policy: Nytke team Return Policy
Refurbished: For Communication Power Module EPW50-27A-E
- Model #: 722954723070
- Item #: 9SIVT8HKWF3231
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1Pcs for S26113-E568-V70 CPB09-043A 800W R920 M720 Medical Power ...
- Model #: 716837085904
- Item #: 9SIVB8UKX58919
- Return Policy: Magicpower Return Policy
Refurbished: 48V 21A Power Supply For SPS-1000P-48
- Model #: 753525992311
- Item #: 9SIVB8UKAA8237
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For AA22230-A
- Model #: 753525991956
- Item #: 9SIVB8UKAA8211
- 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.
