Power Supplies - Showing 2305 - 2328 of 18359 Products
Refurbished: For DS-C48S-300AC 300W DS-C9148S-K9
- Model #: 753525957686
- Item #: 9SIVB8UKAA9017
- Return Policy: Magicpower Return Policy
Refurbished: UCS C200 CPB09-031A Server Power Supply R2X0-PSU2-650W-SB
- Model #: 722954730207
- Item #: 9SIVB8UKAA5613
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 4506 8677 HS20 2000W Switching Power Supply DPS-2000BB A ...
- Model #: 744623310442
- Item #: 9SIVB8UKD12089
- Return Policy: Magicpower Return Policy
Refurbished: R48-3500E4 48V/3500W For Vertiv High-efficiency Communication Power ...
- Model #: 753525955682
- Item #: 9SIVT8HKWF2639
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: 1pcs for DPS-500LB A AF500B00438 300-2166 J4200 500W AC Power Supply
- Model #: 716837098256
- Item #: 9SIVB8UKX63080
- Return Policy: Magicpower Return Policy
Refurbished: ZWQ130-5224/A Multiple Output Switching Power Supply
- Model #: 724780182922
- Item #: 9SIVB8UKA98959
- Return Policy: Magicpower Return Policy
Refurbished: For P2H-5400V 400W Redundant Power Supply
- Model #: 726727731934
- Item #: 9SIVRWKKXA3361
- Return Policy: Nytke team Return Policy
Refurbished: PBA100F-12-N Original Disassembly small volume thin Switching Power Supply ...
- Model #: 753525984521
- Item #: 9SIVB8UKAA9104
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO FLEX Small 1U Rated 180W Switching Power Supply F-3000L ...
- Model #: 744623314365
- Item #: 9SIVB8UKD21828
- Return Policy: Magicpower Return Policy
Refurbished: For PWS-504P-1R 500W Server Redundant Power Module
- Model #: 724780779375
- Item #: 9SIVB8UKAA6732
- Return Policy: Magicpower Return Policy
Refurbished: For PWR-150-AC 12V12.5A power supply
- Model #: 752804575573
- Item #: 9SIVRWKKXB1992
- Return Policy: Nytke team Return Policy
Refurbished: For Murata D1U5CS-H-2825-12-HA4C PWR Supply AC/DC
- Model #: 703454718605
- Item #: 9SIVB8UKAJ6328
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply MCS600-48/10 ESR-48/10B A CU-08D D
- Model #: 753525957846
- Item #: 9SIVB8UKAA9031
- Return Policy: Magicpower Return Policy
Refurbished: SFX-0540H2 industrial computer small power supply 400W
- Model #: 703454722978
- Item #: 9SIVB8UKAJ6768
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Standard 1U 300W Switching Power Supply SD-3200U
- Model #: 744623316628
- Item #: 9SIVB8UKD46503
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FSP250-20LR DS600-G10 9PA250DS01 Power Supply
- Model #: 792597710515
- Item #: 9SIVRWKKXD4291
- Return Policy: Nytke team Return Policy
Refurbished: LFA150F-24-J1 Original Disassembly Switching Power Supply 24V/6.3A
- Model #: 753525956993
- Item #: 9SIVB8UKAA8892
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 450W 510S B415 M510 M610 E74S TFX10 pin desktop small power ...
- Model #: 792597707652
- Item #: 9SIVRWKKXD3721
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO N3024 N3048 200W Power Supply DPS-200PB-191 A ...
- Model #: 726099222740
- Item #: 9SIVB8UKCU6258
- Return Policy: Magicpower Return Policy
Refurbished: VNX8000 FS9024 071-000-597-00 071-000-022-00 800W Work Good
- Model #: 753525957662
- Item #: 9SIVB8UKAA9009
- Return Policy: Magicpower Return Policy
Refurbished: Powerleader 1U 600W Switching Power Supply U1A-C20600-D
- Model #: 753525941258
- Item #: 9SIVB8UKAA4979
- Return Policy: Magicpower Return Policy
Refurbished: For DL380 G6 G7 Server Power Supply DPS-460EB A HSTNS-PL14 511777-001
- Model #: 792597702909
- Item #: 9SIVRWKKXD2184
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO R510 G6 1U 600W Switching Power Supply EFAP-601 36001025
- Model #: 744623302133
- Item #: 9SIVB8UKCV8234
- Return Policy: Magicpower Return Policy
Refurbished: PCle 3.0 Poe Switching Power Supply STL2APCAA 03031SNT
- Model #: 753525945799
- Item #: 9SIVB8UKA99658
- 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.
