Power Supplies - Showing 2137 - 2160 of 17943 Products
Refurbished: Power Supply S8JC-Z05005C-800 For 50W 5V AC100240V ...
- Model #: 753525988864
- Item #: 9SIVB8UKAA7677
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12V3.33A 40W Power Supply SRP-40A-1008
- Model #: 759950247637
- Item #: 9SIVB8UKDF9424
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U Rated 230W Peak 250W Switching Power Supply ...
- Model #: 744623315010
- Item #: 9SIVB8UKD21946
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply YM-7421E 420W 3Y SSG520 SSG550 DC
- Model #: 703454925065
- Item #: 9SIVB8UKA98691
- Return Policy: Magicpower Return Policy
Refurbished: ML310G4 Server Power Supply 432055-001/432479-001
- Model #: 722954736261
- Item #: 9SIVB8UKAA6246
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FP2 48V 3KW FRPNT END RECT HE 380875 62.5A Communication Power ...
- Model #: 792597719600
- Item #: 9SIVRWKKXD7482
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for EN4093 49Y4273 49Y4272 module 00D5826 00D5825
- Model #: 792597713073
- Item #: 9SIVRWKKXD4843
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO ACDC CONVERTER 12V 1100W Switching Power Supply ...
- Model #: 744623298733
- Item #: 9SIVB8UKCU6472
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply API4HR38-000 API4HR38
- Model #: 703454716694
- Item #: 9SIVB8UKAJ6122
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for ATX3500-65PA industrial power supply ATX3000-68PD ...
- Model #: 716837097136
- Item #: 9SIVB8UKX62908
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PWS-2K03P-1R/CPR-2021-2M1 Redundant Power Supply 2000W
- Model #: 792597984848
- Item #: 9SIVB8UKX57167
- Return Policy: Magicpower Return Policy
Refurbished: For ARTESYN DS460S switch power supply DS460S-3-402 server power supply ...
- Model #: 703454722404
- Item #: 9SIVB8UKAJ6683
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO MSR3600 3660 3640 5600 300W Switching Power Supply ...
- Model #: 744623310831
- Item #: 9SIVB8UKD12102
- Return Policy: Magicpower Return Policy
Refurbished: For GW-EPS2U600 2U Server Power Supply Dual CPU8 Pin 600W
- Model #: 724780779627
- Item #: 9SIVB8UKAA6738
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for Industrial power supply ACE-832A ACE-832A-RS 300W
- Model #: 792597714285
- Item #: 9SIVRWKKXD5825
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 550W Power Supply 800 G5 Z1 G6 PCK026 L75200-004-001 ...
- Model #: 792597706952
- Item #: 9SIVRWKKXD3453
- Return Policy: Nytke team Return Policy
Refurbished: For CWT PSB250Q-J3 Power Supply 250W PSB250Q-J3
- Model #: 703454719817
- Item #: 9SIVB8UKAJ6424
- Return Policy: Magicpower Return Policy
Refurbished: For 48V 30A Power Supply For DZY-48/30HIV
- Model #: 753525989885
- Item #: 9SIVB8UKAA7789
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO For XP X9-4Y4Y 470uF450V Power Supply 003-102120-01
- Model #: 759950241048
- Item #: 9SIVB8UKDA0440
- Return Policy: Magicpower Return Policy
Refurbished: +5V +12V -12V +14.4V For Medical Switching Power Supply ...
- Model #: 724780779047
- Item #: 9SIVB8UKAA6704
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PE1800 DPS-650BB A 0FD732 0KD045 7000880-0000 P2591 Power ...
- Model #: 792597710782
- Item #: 9SIVRWKKXD4364
- Return Policy: Nytke team Return Policy
Refurbished: For XW6400 Power Supply DPS-575AB A 405349-001 412848-001
- Model #: 726727725353
- Item #: 9SIVRWKKXA2589
- Return Policy: Nytke team Return Policy
Refurbished: 500W Small 1U ITX HTPC FLEX M1 K39 K49 M41 Small Chassis Power Supply
- Model #: 722954732645
- Item #: 9SIVB8UKAA5846
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 220W Switching Power Supply FSP220-60CU
- Model #: 744623305370
- Item #: 9SIVB8UKD01852
- 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.
