Power Supplies - Showing 2329 - 2352 of 17990 Products
Refurbished: KHACHIMO -5V P8P9 400W Switching Power Supply PP-400V PP-300V
- Model #: 744623306780
- Item #: 9SIVB8UKD06231
- Return Policy: Magicpower Return Policy
Refurbished: For 53.5V 50A 3000W Power Supply For SR4850 SR4850E
- Model #: 753525988543
- Item #: 9SIVB8UKAA7688
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs fo M1K-2C00V server power supply 1200W
- Model #: 716837098379
- Item #: 9SIVB8UKZ24975
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-550AB-36B Server Recorder Redundant Power Supply 550W ...
- Model #: 792597723874
- Item #: 9SIVRWKKXD8797
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DZY-48/50HI (TTI) communication power supply 48V50A
- Model #: 716837093480
- Item #: 9SIVB8UKX61722
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FLEX Small 1U 250W Switching Power Supply FSB009
- Model #: 726099221392
- Item #: 9SIVB8UKCU6107
- Return Policy: Magicpower Return Policy
Refurbished: For EFRP-G757 750W Server Power Supply
- Model #: 726727776959
- Item #: 9SIVRWKKXB0226
- Return Policy: Nytke team Return Policy
Refurbished: For power supply MTW-5660V 660W MTW-5661V
- Model #: 726727723922
- Item #: 9SIVRWKKXA2527
- Return Policy: Nytke team Return Policy
Refurbished: SRX1K-PWR-AC DS1050-3-001-FF Power Module
- Model #: 722954730559
- Item #: 9SIVB8UKAA5652
- Return Policy: Magicpower Return Policy
Refurbished: TRIO-PS/1AC/12DC/10-2866488 2866488
- Model #: 753525949735
- Item #: 9SIVB8UKAA0168
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S10-500P1A 500W 1U Industrial Control Server Power Supply ...
- Model #: 792597715435
- Item #: 9SIVRWKKXD6230
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For PWR-C5-125WAC 1KWAC power supply PWR-C6-125WAC
- Model #: 792597704187
- Item #: 9SIVRWKKXD2541
- Return Policy: Nytke team Return Policy
Refurbished: Switching Power Supply 24V 14A 300W PBA300F-24
- Model #: 724780183134
- Item #: 9SIVB8UKA98948
- Return Policy: Magicpower Return Policy
Refurbished: P6 570 VRM 74Y4908 44V5648 44V5705 44V2965 Voltage Module
- Model #: 722954988523
- Item #: 9SIVB8UKAA6590
- Return Policy: Magicpower Return Policy
Refurbished: For GW330 Computer Host Desktop Power Supply 230W
- Model #: 722954728839
- Item #: 9SIVB8UKAA5461
- Return Policy: Magicpower Return Policy
Refurbished: For GPS-200DBA GPS-200DB SZ-3301P C550 Industrial Control Server Power ...
- Model #: 726727820300
- Item #: 9SIVRWKKXB1421
- Return Policy: Nytke team Return Policy
Refurbished: For MR483000LV Communication Power Supply 48V50A
- Model #: 722954727863
- Item #: 9SIVB8UKAA7477
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO CRPS 800W Switching Power Supply GWCR-800D GW-CRPS2U800 ...
- Model #: 726099222931
- Item #: 9SIVB8UKCU6333
- Return Policy: Magicpower Return Policy
Refurbished: For 3D Communication Power Module 3C17267
- Model #: 703454718490
- Item #: 9SIVB8UKAJ6287
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 300W Switching Power Supply DPSN-300DB D DPSN-300DB C
- Model #: 744623312873
- Item #: 9SIVB8UKD19617
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for GIN-6350P 350W 1 + 1 Redundant Power Supply Module R2G-6350P ...
- Model #: 792597710287
- Item #: 9SIVRWKKXD4261
- Return Policy: Nytke team Return Policy
Refurbished: PSM-6600P 600W Server Medical Equipment Power Supply
- Model #: 722954725043
- Item #: 9SIVB8UKAA7141
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 150W Power Supply MPU150-4350
- Model #: 759950243653
- Item #: 9SIVB8UKDA9007
- Return Policy: Magicpower Return Policy
Refurbished: For G1W2-5760V3V 2U Server Power Cage
- Model #: 703454719633
- Item #: 9SIVB8UKAJ6446
- 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.
