Power Supplies - Showing 2137 - 2160 of 17981 Products
Refurbished: For MAP55-4003 POWER-ONE Switch Power Supply
- Model #: 722954722264
- Item #: 9SIVB8UKAA6874
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply S8FS-G03024C For 30W 24V AC100240V 1.5A ...
- Model #: 753525991581
- Item #: 9SIVB8UKAA8115
- Return Policy: Magicpower Return Policy
Refurbished: For 600 680 800G2 power supply PS-4281-1HA D14-280P1A PCE015 PCD019
- Model #: 726727731965
- Item #: 9SIVRWKKXA3404
- Return Policy: Nytke team Return Policy
Refurbished: TL2000 0FW760 FW760 Model KM80/FL/E/C
- Model #: 753525984491
- Item #: 9SIVB8UKAA9137
- Return Policy: Magicpower Return Policy
Refurbished: For R520 G6 36001054 P2W-5657P 650W 2U Server Power Supply
- Model #: 722954724527
- Item #: 9SIVB8UKAA7082
- Return Policy: Magicpower Return Policy
Refurbished: For SUN SPARC10 SPARCstation 10 Workstation Power Supply, ...
- Model #: 722954726347
- Item #: 9SIVB8UKAA7311
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 3Y YM-5501A C02R Power Module 500W
- Model #: 716837097747
- Item #: 9SIVB8UKX63009
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-200PB-191A 0NMPRY N3024 B3048 Er 200W Switching Power Supply
- Model #: 726727732405
- Item #: 9SIVRWKKXA3555
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply uMP4C-S2I-S2M-S2Q-00 73-954-0142
- Model #: 724780182618
- Item #: 9SIVB8UKA98935
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs For T440 R540 Server Power Supply AC450E-S0 D450E-S 45FD1
- Model #: 726099253560
- Item #: 9SIVRWKKXD1940
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R2W-5600P-R R2Z-6400P-R power supply
- Model #: 792597985128
- Item #: 9SIVB8UKX57228
- Return Policy: Magicpower Return Policy
Refurbished: HBX76 G2 S5 Power Supply 004827 E241 340 100V-240V 50 60Hz
- Model #: 703454925324
- Item #: 9SIVB8UKA98694
- Return Policy: Magicpower Return Policy
Refurbished: For DS10 workstation power supply 30-50454-03 30-50454-01
- Model #: 726727725919
- Item #: 9SIVRWKKXA2664
- Return Policy: Nytke team Return Policy
Refurbished: For 8864N-R8 power supply SFXA5201C SFXA5201B SFXA5061B power supply ...
- Model #: 752804579793
- Item #: 9SIVRWKKXB2447
- Return Policy: Nytke team Return Policy
Refurbished: For PWS-1K21P-1R 1200W Server, Power Supply
- Model #: 792597703036
- Item #: 9SIVRWKKXD2204
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for DL120G9 150G9 775595-B21 775592-001 830219 Server Power ...
- Model #: 792597726202
- Item #: 9SIVRWKKXD9602
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO power Supply For NEMIC-LAMBDA 17W For LWT15H-525 LWT15H
- Model #: 759950240843
- Item #: 9SIVB8UKDA0459
- Return Policy: Magicpower Return Policy
Refurbished: For 02CL197 02CL196 02CL030 FlashSystem F840 F900 Battery
- Model #: 722954736797
- Item #: 9SIVB8UKAA6264
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for A227 CF00300 300- 2232-01 300- 2030-04 ECD14020012/05 Power ...
- Model #: 792597710904
- Item #: 9SIVRWKKXD4399
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for WS-C4948 Power Module DCJ3001-06PLF 300W
- Model #: 792597723355
- Item #: 9SIVRWKKXD8757
- Return Policy: Nytke team Return Policy
Refurbished: New Power Supply KUKA Power Supply 00-109-802
- Model #: 722954989827
- Item #: 9SIVB8UKAJ5629
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for EFRP-S753 I420R-G I620R-G 750W Server Redundant Power Supply
- Model #: 792597709137
- Item #: 9SIVRWKKXD3982
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for TC I-STAR TC-500R8A 500W Device Module Power Supply
- Model #: 716837090182
- Item #: 9SIVB8UKX60634
- Return Policy: Magicpower Return Policy
Refurbished: For FSP250-50PLA FSP150-50GBA FSP250-50GBC FSP300-80GT Power ...
- Model #: 726727819472
- Item #: 9SIVRWKKXB1387
- Return Policy: Nytke team 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.
