Power Supplies - Showing 2353 - 2376 of 17998 Products
Refurbished: 1Pcs for 48V90A switching power supply GPE4890B (AC) system monitoring ...
- Model #: 792597720477
- Item #: 9SIVRWKKXD7849
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Z1 Z2 G4 G5 G6 G8 4Pin 350W Switching Power Supply PCK002 ...
- Model #: 744623308326
- Item #: 9SIVB8UKD06281
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DL20 Gen10 1U Power Supply P07982-501 P07898-001
- Model #: 759950242748
- Item #: 9SIVB8UKDA8866
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP250-60MPC 250w small 1U power supply Flex ITX power supply
- Model #: 716837092049
- Item #: 9SIVB8UKX61351
- Return Policy: Magicpower Return Policy
Refurbished: RM4850H1 MR483000HG2A Communication Switching Power Supply Rectifier ...
- Type: ATX
- Model #: 703454923337
- Item #: 9SIVT8HKWF2598
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For HD4825-3 HD4830-3 Power Supply PSM-A10 Monitoring Module
- Model #: 722954723582
- Item #: 9SIVB8UKAA7005
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for XPS8930 850W 1000W Power Supply Aurora R5 R6 R7 R8 R9
- Model #: 792597726998
- Item #: 9SIVB8UKX32585
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for S8610E S8607E 7805 RG-PA600-RI switching power module 600W
- Model #: 792597725649
- Item #: 9SIVRWKKXD9392
- Return Policy: Nytke team Return Policy
Refurbished: Alienware Area 51 R2 D1500EF-00 DPS-1500FB A 1500W 800GY 0VK3T
- Model #: 753525955774
- Item #: 9SIVB8UKAA8794
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PowerEdge SC1435 600W Switching Power Supply H600P-00 ...
- Model #: 744623314952
- Item #: 9SIVSY0KUU0550
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1pcs for HG2-5400V 5500V 5600V EHG2-6400F HG2-5600E BEA-540N
- Model #: 716837092131
- Item #: 9SIVB8UKX61329
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for JPSU-600-AC-AFO DPS-600AB-6 PN:640-060602 switch power supply
- Model #: 716837085058
- Item #: 9SIVB8UKX58374
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 7932 7916 7908 8016N Video Recorder Power Supply PSF-200M4 ...
- Model #: 716837097167
- Item #: 9SIVB8UKX62922
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for power supply GW-CRPS550N2C 550W RG-PA550l-F TCS81-100-P
- Model #: 716837093183
- Item #: 9SIVB8UKX61702
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 1000W Switching Power Supply SSP-1000RS SSP-850RS
- Model #: 744623304045
- Item #: 9SIVB8UKCW6185
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for PS4100/6100 SC200/220 0R0C2G L700E-S0 PS-3701-2D-LF Power ...
- Model #: 792597710898
- Item #: 9SIVRWKKXD4383
- Return Policy: Nytke team Return Policy
Refurbished: R1IA2871A 875W Server Redundant Power Supply
- Model #: 722954724015
- Item #: 9SIVB8UKAA7027
- Return Policy: Magicpower Return Policy
Refurbished: For X3550M4 X3650M4 power supply 94Y8114 94Y8115 94Y8078 ...
- Model #: 726727774719
- Item #: 9SIVRWKKXA4231
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Micro POS 200W Switching Power Supply P4-250TS
- Model #: 744623306582
- Item #: 9SIVB8UKD06245
- Return Policy: Magicpower Return Policy
Refurbished: For PBM400PQ04C-XA0155A Device Power Supply
- Model #: 726727731842
- Item #: 9SIVRWKKXA3397
- Return Policy: Nytke team Return Policy
Refurbished: PJA600F-12 600W Shell Mounted Power Supply
- Model #: 753525948813
- Item #: 9SIVB8UKAA0029
- Return Policy: Magicpower Return Policy
Refurbished: For CAP200D3 1A LG27803 810-00002-00-3 Device Power Supply
- Model #: 726727722109
- Item #: 9SIVRWKKXA2207
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS For G1136-0550WNA G1116-2000WNC G1116-1200WNB Server Power ...
- Model #: 731029999289
- Item #: 9SIVRWKKXD1157
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DPS-300AB-70A 300W with -5V server 4U industrial power supply
- Model #: 716837088943
- Item #: 9SIVB8UKX60132
- 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.
