Power Supplies - Showing 1969 - 1992 of 17940 Products
Refurbished: For RG-S7606 7610 S7604 M7600 RG-PA240R 278W Power Supply
- Model #: 722954722851
- Item #: 9SIVB8UKAA6958
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for P1S-2300V-R Redundant Power Supply Module P1S2-5300V4V 300W
- Model #: 792597986057
- Item #: 9SIVB8UKX57409
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for W480 Power Supply DPS-500QB A S26113-E538-V50-02
- Model #: 792597985951
- Item #: 9SIVB8UKX57370
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for HAC250P-490 (E) COMPACTPCI Power Supply
- Model #: 716837090786
- Item #: 9SIVB8UKX60852
- Return Policy: Magicpower Return Policy
Refurbished: For Astrodyne Power Supply OFM40-240
- Model #: 753525988444
- Item #: 9SIVSY0KUU0571
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO MA5608T Power Supply MPWD H801MPWD
- Model #: 759950241451
- Item #: 9SIVSY0KUV7770
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO Small 1U 14Pin 350W Switching Power Supply DPS-350AB-12 F ...
- Model #: 744623307619
- Item #: 9SIVB8UKD06459
- Return Policy: Magicpower Return Policy
Refurbished: R3G-6650P GIN-6350P Redundant Power Supply 650W 3U
- Model #: 753525932645
- Item #: 9SIVB8UKA99050
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for ETP48100-B1 OLT Power Supply 48V50A100A
- Model #: 716837095262
- Item #: 9SIVB8UKX62430
- Return Policy: Magicpower Return Policy
Refurbished: For LPU200S4.2N6P-CJ LED display power supply 4.2V40A
- Model #: 752804575757
- Item #: 9SIVRWKKXB1983
- Return Policy: Nytke team Return Policy
Refurbished: Power Module 73-552-0005 Industrial Medical Equipment Power Supply
- Model #: 753525947045
- Item #: 9SIVB8UKA99858
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for R525 G2 E30692 DPS-750PB A DPS-750PB B 750W
- Model #: 792597712342
- Item #: 9SIVRWKKXD4778
- Return Policy: Nytke team Return Policy
Refurbished: X3550 3650M4 FSA011 550W 94Y8110 43X3312 94Y8105 94Y8104 ...
- Model #: 753525985306
- Item #: 9SIVB8UKAA9172
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO V200 220 545 546 3010 560 580S S5000 I530 531S 240W Power ...
- Model #: 744623301853
- Item #: 9SIVB8UKCV8173
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M310 510PA-2181-2 HK280-72PP HK280-73PP180W
- Model #: 716837089292
- Item #: 9SIVB8UKX60320
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 14 Pin Desktop Silent Power Supply HK380-16FP FSP280-40EPA ...
- Model #: 792597982967
- Item #: 9SIVB8UKX56768
- Return Policy: Magicpower Return Policy
Refurbished: For 0213A00R DPS-700EB A/E D37234-001 DPS-750PB B/A Power Supply
- Model #: 752804574606
- Item #: 9SIVRWKKXB1869
- Return Policy: Nytke team Return Policy
Refurbished: For 5562819-A HDS VSP G200 G400 G600/800/1000 960GB
- Model #: 726727821727
- Item #: 9SIVRWKKXB1575
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for P520 P620 P720 Power Supply 1000W FSK001 5P50V03189 ...
- Model #: 716837083399
- Item #: 9SIVB8UKX57607
- Return Policy: Magicpower Return Policy
Refurbished: disk cabinet power supply DS4700 EXP810 42D3346 42D3345 81Y2437 600W
- Model #: 722954988677
- Item #: 9SIVB8UKAA6605
- Return Policy: Magicpower Return Policy
Refurbished: S5735-S48S4X S5731 Switch 150W Power Module PAC150S12-R
- Model #: 722954721496
- Item #: 9SIVB8UKAA6770
- Return Policy: Magicpower Return Policy
Refurbished: 2130W Power Supply H66158-011 PSSF222201A H66158-010 H66158-009
- Model #: 753525934847
- Item #: 9SIVSY0KUU5208
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: KHACHIMO 250W Switching Power Supply FSP250-50GUB FSP180-50PLA ...
- Model #: 744623304250
- Item #: 9SIVB8UKCW6170
- Return Policy: Magicpower Return Policy
Refurbished: P6 570 VRM 74Y4908 44V5648 44V5705 44V2965 Voltage Module
- Model #: 722954988523
- Item #: 9SIVB8UKAA6590
- 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.
