Power Supplies - Showing 1921 - 1944 of 17940 Products
Refurbished: For GIN-38000V Xinju R2G-5800V 800W ZI
- Model #: 722954721021
- Item #: 9SIVB8UKAA6729
- Return Policy: Magicpower Return Policy
Refurbished: For T5600 T3600 635W NVC7F D635EF-00 Power Supply
- Model #: 792597703029
- Item #: 9SIVRWKKXD2188
- Return Policy: Nytke team Return Policy
Refurbished: For PS4100 V16M0 E09M E09M002
- Model #: 726727816105
- Item #: 9SIVRWKKXB0650
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For FSP -5V PFC Standard 1U Rated 350W Peak 400W Switching ...
- Model #: 744623312668
- Item #: 9SIVB8UKD19563
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO G9 800W Switching Power Supply HSTNS-PF46 735040-001 ...
- Model #: 744623316321
- Item #: 9SIVB8UKD46510
- Return Policy: Magicpower Return Policy
Refurbished: 7070 3050 3650 3670 7050 706034671 5090 500W power supply
- Model #: 703454721568
- Item #: 9SIVB8UKAJ6642
- Return Policy: Magicpower Return Policy
Refurbished: CX357 D400P-01 Edge R300 Power Supply 400W
- Model #: 722954725708
- Item #: 9SIVB8UKAA7252
- Return Policy: Magicpower Return Policy
Refurbished: HY05020GN For SHINDENGEN Industrial Control Equipment Switching Power ...
- Model #: 724780778491
- Item #: 9SIVSY0KUS0349
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1Pcs for cPS-H325/AC HAC250P-490 (E) CPCI Power Module
- Model #: 792597728268
- Item #: 9SIVB8UKX32959
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP350-60BTP FSP350-60EVM FSP200-50PLA2-SL FSP200-55SFX ...
- Model #: 716837087847
- Item #: 9SIVB8UKX59595
- Return Policy: Magicpower Return Policy
Refurbished: For server power supply GW-CRPS1600D 1600W 1PCS
- Model #: 726727817966
- Item #: 9SIVRWKKXB1006
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for 12V switching power supply RSP-750-12 12V 62.5A 750W
- Model #: 792597719990
- Item #: 9SIVRWKKXD7525
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for X3-2 7038476 7047410 7060951 7079395 AA27020L
- Model #: 792597713035
- Item #: 9SIVRWKKXD4832
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for P2G-6510P server power supply
- Model #: 716837092414
- Item #: 9SIVB8UKX61363
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 2U Rated 300W Peak 400W Switching Power Supply SD-3450U2
- Model #: 744623310022
- Item #: 9SIVB8UKD12076
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for M25918-002 M47644-001 1450W Z8G5 D20-1K1P1A
- Model #: 792597727001
- Item #: 9SIVB8UKX32589
- Return Policy: Magicpower Return Policy
Refurbished: For ETA-SEI 24V 4.5A Power Supply For BFD24SX-U1
- Model #: 753525989366
- Item #: 9SIVB8UKAA7729
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Small 1U K39 M41 500W Switching Power Supply DPS-500AB-2 C ...
- Model #: 744623305837
- Item #: 9SIVB8UKD01892
- Return Policy: Magicpower Return Policy
Refurbished: NAS Chassis ITX 250W Small 1U Power Supply DPS-250AB-35A
- Model #: 722954732164
- Item #: 9SIVB8UKAA5804
- Return Policy: Magicpower Return Policy
Refurbished: For Netapp DS14MK2 Storage Power RS-PSU-450-AC1N, ...
- Model #: 722954735264
- Item #: 9SIVB8UKAA6136
- Return Policy: Magicpower Return Policy
Refurbished: For M1S2-5400V4H Server Power Supply 1+1 M1S-3400V
- Model #: 722954731433
- Item #: 9SIVB8UKAA5754
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for X306 server power supply 300W 26K4106 23K4874 API3FS26
- Model #: 792597711802
- Item #: 9SIVRWKKXD4660
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply C6030G1
- Model #: 759950245589
- Item #: 9SIVB8UKDA9316
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply ENERMAX MODU 82+ 625W Power Supply EMD625AWT
- Model #: 703454715253
- Item #: 9SIVB8UKAJ5871
- 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.
