Power Supplies - Showing 2329 - 2352 of 18352 Products
Refurbished: X3550 Server Power Supply 7001134-Y000 7001134-Y002 39Y7189 39Y7188
- Model #: 722954725036
- Item #: 9SIVB8UKAA7137
- Return Policy: Magicpower Return Policy
Refurbished: ASTRODYNE 5V 15V Switching Power Supply OFM-0201
- Model #: 753525942224
- Item #: 9SIVB8UKAA5118
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AT power supply, industrial computer 300W with P8P9
- Model #: 716837092018
- Item #: 9SIVB8UKX61326
- Return Policy: Magicpower Return Policy
Refurbished: New Power Supply MEGMEET MKP199C 19V10.5A Power Supply ...
- Model #: 722954989025
- Item #: 9SIVB8UKAJ5595
- Return Policy: Magicpower Return Policy
Refurbished: R300 Server Power Supply D400P-00 DPS-400YB A JY924
- Model #: 722954736674
- Item #: 9SIVB8UKAA6265
- Return Policy: Magicpower Return Policy
Refurbished: MSA500G2/MSA1000 Disk Cabinet Power Supply 212398-001/005 ...
- Model #: 722954725227
- Item #: 9SIVB8UKAA7209
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO XPS 8100 8910 8920 8300 8900 8700 R6 R7 460W D460AM-02 ...
- Model #: 759950240560
- Item #: 9SIVB8UKDA0401
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO ITX Micro POS 200W Switching Power Supply P4-250T
- Model #: 744623303512
- Item #: 9SIVB8UKCW6116
- Return Policy: Magicpower Return Policy
Refurbished: RD340 RD430 540 RD640 550W Switching Power Supply DPS-550LB A ...
- Model #: 753525946291
- Item #: 9SIVB8UKA99710
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 3650 3040 7040MT power supply L240AM-00 H240EM-00 ...
- Model #: 792597708130
- Item #: 9SIVRWKKXD3728
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply EX4330 EX4300 350W JPSU-350-AC-AFO 740-046873 ...
- Model #: 753525932737
- Item #: 9SIVB8UKA99086
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for AA24280 PWR-C45-1400AC PWR-C45-1400DC 1400W Power Supply
- Model #: 792597726516
- Item #: 9SIVRWKKXD9612
- Return Policy: Nytke team Return Policy
Refurbished: Switching Power Supply LPT22
- Model #: 753525942699
- Item #: 9SIVB8UKAA5157
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for 00FX412 P720 P740 VRM Voltage Regulator Module
- Model #: 726099252488
- Item #: 9SIVRWKKXD1818
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for RG-240R RG-300I switching power supply
- Model #: 792597726332
- Item #: 9SIVRWKKXD9605
- Return Policy: Nytke team Return Policy
Refurbished: PE1850 Server Power Supply AA23300 0X0551 0JD090 550W
- Model #: 722954734311
- Item #: 9SIVB8UKAA6015
- Return Policy: Magicpower Return Policy
Refurbished: N6K-C6001 Switch Power Supply 341-0522-01 NXA-PAC-1100W-B
- Model #: 753525984040
- Item #: 9SIVB8UKAA9058
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for T5-4 T5-8 SPAORCL-01G 7068817 7081596 7302922 3060W power ...
- Model #: 716837098300
- Item #: 9SIVB8UKX63095
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for RG-PA550I II-F 550W AC power module for RG-S6120-48XS8CQ
- Model #: 792597712847
- Item #: 9SIVRWKKXD4821
- Return Policy: Nytke team Return Policy
Refurbished: For R250-PSU2-850W 341-0420-01 UCS R250
- Model #: 726727723748
- Item #: 9SIVRWKKXA2384
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply For SIL10E-12W3V3-V 100-240VAC EXB30-48D05-3V3Y ...
- Model #: 753525990782
- Item #: 9SIVB8UKAA7946
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 750W server module power supply U1A-G10750-DR R2A-GV0750-W
- Model #: 792597713653
- Item #: 9SIVRWKKXD5575
- 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: KHACHIMO PSR650B-12A1 server power module 650W GPR650B-12A1H
- Model #: 745635674102
- Item #: 9SIVB8UKDA0158
- 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.
