Power Supplies - Showing 1945 - 1968 of 17943 Products
Refurbished: 1Pcs for AD301M12-1M1 Power Module
- Model #: 716837090625
- Item #: 9SIVB8UKX60834
- Return Policy: Magicpower Return Policy
Refurbished: For 2022 HW 0235G6RF STLZ01CFBB 2600T S2200T
- Model #: 726099254031
- Item #: 9SIVRWKKXD2036
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 441-00025 441-00027 441-00037 FAS32 FAS80
- Model #: 792597984466
- Item #: 9SIVB8UKX57065
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Bronze -5V 300W Switching Power Supply FSP300-70PFL ...
- Model #: 744623302737
- Item #: 9SIVB8UKCV8251
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for CE12800 CE16800 PAH-3000WA Power Module 3000W
- Model #: 792597724659
- Item #: 9SIVRWKKXD9223
- Return Policy: Nytke team Return Policy
Refurbished: For PWS-521-1H power supply 520W 1U 1pcs
- Model #: 726727821147
- Item #: 9SIVRWKKXB1527
- Return Policy: Nytke team Return Policy
Refurbished: For X440 X445 X455 power supply 49P2070 49P2071 DPS-1050AB A
- Model #: 726727728187
- Item #: 9SIVRWKKXA2839
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for DPS-800AB-14K 48V CRPS Redundant Power Supply
- Model #: 792597708369
- Item #: 9SIVRWKKXD3718
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 48/3000 CC HE communication power supply 241119.902
- Model #: 792597718986
- Item #: 9SIVRWKKXD7195
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for SMART PACK 242100.118 Power Monitoring Module
- Model #: 792597720460
- Item #: 9SIVRWKKXD7842
- Return Policy: Nytke team Return Policy
Refurbished: For Z200 Graphics Workstation Power Supply DPS-320KB-1 A 502629-001 ...
- Model #: 752804574866
- Item #: 9SIVRWKKXB1926
- Return Policy: Nytke team Return Policy
Refurbished: 2Pcs for R2A-BV0300-N server power supply U1A-B10300-DR 300W power ...
- Model #: 716837083641
- Item #: 9SIVB8UKX57613
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 2U Server Power Supply DPS-500AB-9C 550W 9A B D E F
- Model #: 726099252495
- Item #: 9SIVRWKKXD1788
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For CWT -5V 400W Switching Power Supply CWT-400BDP
- Model #: 744623302263
- Item #: 9SIVB8UKCV8239
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 750W Switching Power Supply PS-2751-5LD
- Model #: 744623307435
- Item #: 9SIVB8UKD06436
- Return Policy: Magicpower Return Policy
Refurbished: DC-DC 150W Switching Power Supply END 1215 END-1215
- Model #: 753525944556
- Item #: 9SIVB8UKAA5391
- Return Policy: Magicpower Return Policy
Refurbished: AD48/30-B 53.5V/30A For VAPEL Communication Power Rectifier Module
- Model #: 724780778026
- Item #: 9SIVT8HKWF2821
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO 1U E200 275W Switching Power Supply ENP-3927B ENP-3927C
- Model #: 744623301631
- Item #: 9SIVB8UKCV8182
- Return Policy: Magicpower Return Policy
Refurbished: For P1S-2400V-R Server Module Power Supply 400W
- Model #: 726099251535
- Item #: 9SIVRWKKXD1495
- Return Policy: Nytke team Return Policy
Refurbished: For EX4500-PWR1-AC-FB DS1200-3-002 1200W switching power supply
- Model #: 752804574149
- Item #: 9SIVRWKKXB1797
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for GX100 GX110GX200 Power Supply 145W PS-5141-2D1 -2D2
- Model #: 792597728176
- Item #: 9SIVB8UKX32973
- Return Policy: Magicpower Return Policy
Refurbished: D14-180P1A 794974-001 759051 ATX Power Supply
- Model #: 703454720769
- Item #: 9SIVB8UKAJ6512
- Return Policy: Magicpower Return Policy
Refurbished: For DS4300 FASTT600 Controller 24P8206 24P8059 24P8225 1pcs
- Model #: 726727728484
- Item #: 9SIVRWKKXA2860
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 390 3010 790 990MT Large Chassis Power Supply H265AM-00 ...
- Model #: 792597982929
- Item #: 9SIVB8UKX56797
- 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.
