Power Supplies - Showing 1993 - 2016 of 17989 Products
Refurbished: X226 Power Cage 24R2560 24R2561 39Y7181 39Y7180
- Model #: 722954736759
- Item #: 9SIVB8UKAA6295
- Return Policy: Magicpower Return Policy
Refurbished: Power-One 6900 8900 8950 DC 850W Power Supply FND850-S101G ...
- Model #: 753525943054
- Item #: 9SIVB8UKAA5233
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for EPW50-48A 48V50A
- Model #: 716837094920
- Item #: 9SIVB8UKX62270
- Return Policy: Magicpower Return Policy
Refurbished: DL180 Gen9 G9 Power Supply 744689-B21 754376-001 HSTNS-PL48-A
- Model #: 722954735745
- Item #: 9SIVB8UKAA6188
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For DS850-3-006 3.3V network power supply
- Model #: 792597703777
- Item #: 9SIVRWKKXD2438
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 48V 0.65A 30W Power Supply PBA30F-48-N PBA30F-48 PBA30F
- Model #: 759950243950
- Item #: 9SIVB8UKDA9117
- Return Policy: Magicpower Return Policy
Refurbished: ST-250WHV 250W AT Power Supply
- Model #: 753525949704
- Item #: 9SIVB8UKAA0156
- Return Policy: Magicpower Return Policy
Refurbished: 40W Switching Power Supply GPM40A G GPM40AG
- Model #: 753525936797
- Item #: 9SIVB8UKA99507
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 800W Switching Power Supply DPS-800AB-62 A DPS-800AB-62A ...
- Model #: 744623311968
- Item #: 9SIVB8UKD19640
- Return Policy: Magicpower Return Policy
Refurbished: ATX 550W Power Supply GPS-550LB G CAA-550CT A
- Model #: 724780181017
- Item #: 9SIVB8UKA98738
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PSB350M-J3 Power Supply PSB400M-J3 Industrial Equipment Machine ...
- Model #: 716837090731
- Item #: 9SIVB8UKX60833
- Return Policy: Magicpower Return Policy
Refurbished: For DPSN-220AB A 34-1665-01 PIX-535-PWR-AC 800-18949-01
- Model #: 726727731903
- Item #: 9SIVRWKKXA3402
- Return Policy: Nytke team Return Policy
Refurbished: DL580G3 G4 TSTNS-PA01 337867-001 364360 Server Power Supply 1300W
- Model #: 722954727245
- Item #: 9SIVB8UKAA7425
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Mini ITX FLEX Small 1U A35 S3 K39 500W Switching Power Supply ...
- Model #: 744623302256
- Item #: 9SIVB8UKCV8235
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for HNAS 3080G2 3090 G2 SX325097-01 SX325097-02 Battery
- Model #: 792597724215
- Item #: 9SIVRWKKXD9063
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO DVR NVR 60W Power Supply FSP060-40ASV
- Model #: 744623301914
- Item #: 9SIVB8UKCV8192
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for GX100 GX110 GX200 Power Supply 145W PS-5141-2D1 -2D2
- Model #: 716837090472
- Item #: 9SIVB8UKX60827
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 400W Switching Power Supply P2H-5400V
- Model #: 726099222184
- Item #: 9SIVB8UKCU6135
- Return Policy: Magicpower Return Policy
Refurbished: Z4G4 Workstation Power Supply 465W DPS-465AB-3 851381-001 Z4 G4
- Model #: 722954728822
- Item #: 9SIVB8UKAA5458
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CEG75035 150-750Vdc/0-33A/20KW DC/DC Charging Module
- Model #: 792597721955
- Item #: 9SIVRWKKXD8293
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1600W Power Supply PSSF162204C 060-0415-001
- Model #: 745635674676
- Item #: 9SIVB8UKDA0209
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO RP3000 150W Switching Power Supply PS-5151-08 481171-001 ...
- Model #: 726099221743
- Item #: 9SIVB8UKCU6102
- Return Policy: Magicpower Return Policy
Refurbished: 350W Power Supply ST-350BKP
- Model #: 703454714652
- Item #: 9SIVB8UKAJ5740
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 300W FSP300-50SNV 110V
- Model #: 716837089711
- Item #: 9SIVB8UKX60503
- 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.
