Power Supplies - Showing 2353 - 2376 of 17941 Products
Refurbished: KHACHIMO PSU For 3Y DC 720W Switching Power Supply YM-2721D
- Model #: 744623298863
- Item #: 9SIVB8UKCU6479
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for RD650RD450RD350X PS-2551-6L-LF DPS-550AB-5 A Server Power ...
- Model #: 792597706655
- Item #: 9SIVRWKKXD3467
- Return Policy: Nytke team Return Policy
Refurbished: 390DT 990DT 790DT Desktop 250W Chassis Power Supply L250PS-01 ...
- Model #: 722954987663
- Item #: 9SIVB8UKAA6494
- Return Policy: Magicpower Return Policy
Refurbished: For 280W Power Supply PS-5281-7VR DPS-280FBA HK380-12GP PC6001
- Model #: 726727732146
- Item #: 9SIVRWKKXA3409
- Return Policy: Nytke team Return Policy
Refurbished: For T440 R540 server cold power supply AC450E-S0 D450E-S1 45FD1 HXF7Y
- Model #: 726099254321
- Item #: 9SIVRWKKXD2066
- Return Policy: Nytke team Return Policy
Refurbished: For AD801M53.5-1M10 AD801M53.5-1M17A Server Switching Power Supply ...
- Model #: 752804575047
- Item #: 9SIVRWKKXB1944
- Return Policy: Nytke team Return Policy
Refurbished: UCS C240 M3 1200W Power Supply UCSC-PSU2-1200 DPST-1200CB A ...
- Model #: 753525943115
- Item #: 9SIVB8UKAA5257
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply INVENTRNICS 600W Power Supply EUD-600S12ADT
- Model #: 722954989681
- Item #: 9SIVB8UKAJ5628
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-400AB-16B GPS-400AB B power supply 80mm
- Model #: 716837092605
- Item #: 9SIVB8UKX61571
- Return Policy: Magicpower Return Policy
Refurbished: 10Pin 150W Power Supply SFXA1151A
- Model #: 703454716106
- Item #: 9SIVB8UKAJ6059
- Return Policy: Magicpower Return Policy
Refurbished: For B5040 B4655 B5035 B5030 A9050 Power Supply PS- 2151-08 VB 1pcs
- Model #: 726727733617
- Item #: 9SIVRWKKXA3823
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 550W power supply U1A-A10550-DR
- Model #: 792597708192
- Item #: 9SIVRWKKXD3841
- Return Policy: Nytke team Return Policy
Refurbished: 8 serial port SFXA5201B hard disk recorder power supply DS-8632N-E8/K8 host
- Model #: 703454717431
- Item #: 9SIVB8UKAJ6147
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 130W Switching Power Supply GW-D19-130
- Model #: 744623304588
- Item #: 9SIVB8UKCW6209
- Return Policy: Magicpower Return Policy
Refurbished: PC PSU For 3Y 1000W Power Supply YM-8102A FSP1000-12ACB
- Model #: 753525936285
- Item #: 9SIVB8UKA99456
- 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 GW-CDM200SDA-TF 12-Pin 200W 10th Generation Host Power Supply
- Model #: 722954721663
- Item #: 9SIVB8UKAA6831
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for EPS1U700 (90 +) 700W 1U Industrial Control Server Power Supply ...
- Model #: 792597716579
- Item #: 9SIVRWKKXD6566
- Return Policy: Nytke team Return Policy
Refurbished: For 470 450 D1257 H2370 D550P-00 DPS-550DB A Server Power Supply
- Model #: 726727774436
- Item #: 9SIVRWKKXA4043
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for FSP300-60GSV FSP300-60LC FSP300-60PF FSP300-60PLA Industrial ...
- Model #: 716837087922
- Item #: 9SIVB8UKX59628
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO EliteOne 800 G3 180W Switching Power Supply DPS-180AB-28 A ...
- Model #: 744623299907
- Item #: 9SIVB8UKCU6653
- Return Policy: Magicpower Return Policy
Refurbished: For 7000850-Y000 HJ364 PowerEdge 6800 Server Power Supply 1570W
- Model #: 752804580478
- Item #: 9SIVRWKKXB2546
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 4.5V40A 200W Switching Power Supply MCP200WS-4.5A-C
- Model #: 744623310527
- Item #: 9SIVB8UKD12121
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for PSR1600C-12A-B YNEC1600AM-2A01P10 1600W switching power ...
- Model #: 716837083948
- Item #: 9SIVB8UKX57686
- 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.
