Power Supplies - Showing 2065 - 2088 of 17933 Products
Refurbished: For R48-2000e3 48V 30A Communication Power Supply 2000W
- Model #: 722954727887
- Item #: 9SIVB8UKAA7439
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 560W Switching Power Supply PWS-563-1H
- Model #: 744623315614
- Item #: 9SIVB8UKD46427
- Return Policy: Magicpower Return Policy
Refurbished: For MPN1-6300F power supply, switching power supply 300W
- Model #: 726727776683
- Item #: 9SIVRWKKXA7169
- Return Policy: Nytke team Return Policy
Refurbished: For MW SE-600-24 600W 24V 25A Power Supply
- Model #: 753525957839
- Item #: 9SIVB8UKAA9027
- Return Policy: Magicpower Return Policy
Refurbished: For MHG2-6300P power supply S11 SSI 5000
- Model #: 792597703623
- Item #: 9SIVRWKKXD2292
- Return Policy: Nytke team Return Policy
Refurbished: For NXA-PAC-500W-B Nexus 3064 Series Power Supply 341-0547-01 1pcs
- Model #: 726727722055
- Item #: 9SIVRWKKXA2126
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for OptiPlex7000 5000 3000MT 3020 R13 R14 T150 Power Supply 400W ...
- Model #: 792597982103
- Item #: 9SIVB8UKX56659
- Return Policy: Magicpower Return Policy
Refurbished: 750W Titanium Server Power Supply HSTNS-PL29-AD 746072-001 ...
- Model #: 703454720394
- Item #: 9SIVB8UKAJ6470
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 450W Switching Power Supply ATX-1245GA1
- Model #: 744623313313
- Item #: 9SIVB8UKD21710
- Return Policy: Magicpower Return Policy
Refurbished: For 1100W Server Power Supply S-1100ADU00-201 G84027-007
- Model #: 726727817706
- Item #: 9SIVRWKKXB1182
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for APR48 communication power supply, module
- Model #: 792597719549
- Item #: 9SIVRWKKXD7499
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 250W Switching Power Supply EFRP-250ANF EFRP-250A ...
- Model #: 744623306681
- Item #: 9SIVB8UKD06238
- Return Policy: Magicpower Return Policy
Refurbished: DC 350W Switching Power Supply PSR350-D10
- Model #: 753525936278
- Item #: 9SIVB8UKA99452
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for YM-2461A 460W Hard Disk Cabinet Power Supply YM-2461AAR
- Model #: 716837090779
- Item #: 9SIVB8UKX60848
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA AIphaII-650 650W Power Supply ...
- Model #: 759950245824
- Item #: 9SIVB8UKDA9315
- Return Policy: Magicpower Return Policy
Refurbished: For TC4600 TC6600 Tool Case Server Power Supply DS 2000-3 - 002 2000W
- Model #: 726727816419
- Item #: 9SIVRWKKXB0648
- Return Policy: Nytke team Return Policy
Refurbished: Waterproof Power Supply For EUM-240S670DG 240W 18-57V
- Model #: 753525991383
- Item #: 9SIVB8UKAA8041
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply For PAC150D2412-H
- Model #: 753525991840
- Item #: 9SIVB8UKAA8124
- Return Policy: Magicpower Return Policy
Refurbished: For Power-one Power CPCI Module ZT6303 AC, CPA 250-4530S181 4530S195
- Model #: 722954731310
- Item #: 9SIVB8UKAA5708
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 12V 5A 60W Power Supply MVLT60-1201S15
- Model #: 759950241468
- Item #: 9SIVB8UKDA8727
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for 7070 3050 3650 3670 7050 7060 5090 360W460W 500W Power Supply
- Model #: 792597728411
- Item #: 9SIVB8UKX33143
- Return Policy: Magicpower Return Policy
Refurbished: T350 G7 T280 G3 Server Power Supply DPS-700FB E 700W
- Model #: 722954729645
- Item #: 9SIVB8UKAA5539
- Return Policy: Magicpower Return Policy
Refurbished: For UNIS 526T X500T X020T X700T 17L Power Supply DPS-750UB A 1PCS
- Model #: 726727732474
- Item #: 9SIVRWKKXA3517
- Return Policy: Nytke team Return Policy
Refurbished: NF5280M4 5270M4 8480 M4 800W Switching Power Supply PS-2801-6LS
- Model #: 753525937138
- Item #: 9SIVB8UKA99549
- 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.
