Power Supplies - Showing 2257 - 2280 of 17941 Products
Refurbished: 1PCS for SA5212 NF5270 5280 M4 M5 550W Server Power Supply PS-2551-5L
- Model #: 792597705207
- Item #: 9SIVRWKKXD2729
- Return Policy: Nytke team Return Policy
Refurbished: For 220V 48VDC Power Supply For SR4850-A
- Model #: 753525989014
- Item #: 9SIVB8UKAA7730
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for DPS-500AB-9 A/B/C D server, power module 500W
- Model #: 792597724642
- Item #: 9SIVRWKKXD9099
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DPS-1100AB-7 A 1100W MQM8790 Mellanox Power Supply
- Model #: 716837085171
- Item #: 9SIVB8UKX58442
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S01 600G3 400G5 SFF310W D18-310P1A PCH019
- Model #: 792597707119
- Item #: 9SIVRWKKXD3465
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO For 3Y 1000W Switching Power Supply YM-2102F YM-2102D
- Model #: 744623301280
- Item #: 9SIVB8UKCV8136
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO X3650M5 X3550M5 X3500M5 550W Switching Power Supply ...
- Model #: 744623301969
- Item #: 9SIVB8UKCV8212
- Return Policy: Magicpower Return Policy
Refurbished: C6105 Server Power Supply Platinum 12V 1400W D1200E-S1 S0 10 6PINs
- Model #: 703454720301
- Item #: 9SIVB8UKAJ6482
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO New Switching Power Supply For 24V5A JLIVKE Power Supply ...
- Model #: 759950243332
- Item #: 9SIVB8UKDA8946
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-250AB-44DB 89Bflex NAS Server 1U 531
- Model #: 716837088790
- Item #: 9SIVB8UKX60125
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP400-70PFL (SK) Industrial Control Power Supply FSP350-70PFL ...
- Model #: 792597713295
- Item #: 9SIVRWKKXD4925
- Return Policy: Nytke team Return Policy
Refurbished: POE 1150W Switching Power Supply W2PSA1150
- Model #: 753525936926
- Item #: 9SIVB8UKA99508
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-750XB A power supply E98791-007 750W
- Model #: 726727774580
- Item #: 9SIVRWKKXA4040
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 1U DC 48V 200W Switching Power Supply FSP200-61DL
- Model #: 744623298023
- Item #: 9SIVB8UKCU6424
- Return Policy: Magicpower Return Policy
Refurbished: MPU150-4000 For POWER-0NE Power Supply for Industrial Medical Equipment
- Model #: 724780778590
- Item #: 9SIVB8UKAA6622
- Return Policy: Magicpower Return Policy
Refurbished: Dell Optiplex 3040/5040 SFF L240AM-00 240 Watt Switching Power Supply ...
- Model #: 3RK5T, L240AM-00
- Item #: 9SIVG1JK7Z2510
- Return Policy: Fastparts Return Policy
Refurbished: UCS C240 M3 DPST-1200CB A UCSC-PSU2-1200 1200W
- Model #: 753525986761
- Item #: 9SIVB8UKAA8689
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U 220W 300W Switching Power Supply KW-3011F-1M1 ...
- Model #: 744623314570
- Item #: 9SIVB8UKD21863
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for S0203 S0208MINI Small Chassis Desktop Power Supply PC180LAA ...
- Model #: 792597706396
- Item #: 9SIVRWKKXD3244
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for PWS-605P-1H FSB004-4B0G Server 600W with cable 1U
- Model #: 731029999586
- Item #: 9SIVRWKKXD1355
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for GTP-3500L ST-350PFC FSP300-60GHC(85) FSP300-60PN1 ...
- Model #: 716837087755
- Item #: 9SIVB8UKX59605
- Return Policy: Magicpower Return Policy
Refurbished: 1U 80plus Platinum 850W Switching Power Supply FSP850-50FGPH1
- Model #: 753525944273
- Item #: 9SIVB8UKAA5367
- Return Policy: Magicpower Return Policy
Refurbished: For P6 570 regulator module API4VR19 44V2965 44V5074 42R8325
- Model #: 726727776645
- Item #: 9SIVRWKKXB0123
- Return Policy: Nytke team Return Policy
Refurbished: server communication power module PS-2461-7H 460W
- Model #: 722954988400
- Item #: 9SIVT8HKWF2835
- Return Policy: YunYunKeJiShiZhuangDian 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.
