Power Supplies - Showing 1969 - 1992 of 17940 Products
Refurbished: KHACHIMO X3650M5 X3550M5 X3500M5 550W Switching Power Supply ...
- Model #: 744623301969
- Item #: 9SIVB8UKCV8212
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for SS-400ET industrial computer, power supply
- Model #: 792597716159
- Item #: 9SIVRWKKXD6557
- Return Policy: Nytke team Return Policy
Refurbished: Power Supply 341-0692-01 500W NXA-PHV-500W
- Model #: 753525986563
- Item #: 9SIVB8UKAA8606
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for T7600 T7610 T7910 Workstation Power Supply 1300W H1300EF-00 ...
- Model #: 792597986088
- Item #: 9SIVB8UKX57465
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for MTW-5660V 660W industrial control equipment power supply
- Model #: 716837090533
- Item #: 9SIVB8UKX60851
- Return Policy: Magicpower Return Policy
Refurbished: R430 D550E-S1 0X185V X185V 550W EPP
- Model #: 753525957495
- Item #: 9SIVB8UKAA8945
- Return Policy: Magicpower Return Policy
Refurbished: QFX5100-48T 650W Power Supply FSA016 JPSU-650W-DC-AFI 740-038949
- Model #: 753525941647
- Item #: 9SIVB8UKAA5034
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For XP POWER 48V 2.6A 125W Power Supply ...
- Model #: 759950242939
- Item #: 9SIVB8UKDA8928
- Return Policy: Magicpower Return Policy
Refurbished: 8362 DS-8664 96 20Pin IDE*4 300W Power Supply FSP300-60GNV-5K ...
- Model #: 753525934984
- Item #: 9SIVB8UKA99339
- Return Policy: Magicpower Return Policy
Refurbished: G1W-3760V 760W 2U Server Power Supply
- Model #: 753525954456
- Item #: 9SIVB8UKAA0202
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 12800S core switching power supply PHD-3000WA 3000W
- Model #: 792597723560
- Item #: 9SIVRWKKXD8755
- Return Policy: Nytke team Return Policy
Refurbished: For SZ-3500U 350w server power supply industrial computer 1U power supply
- Model #: 752804578055
- Item #: 9SIVRWKKXB2247
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For CWT -5V 400W Switching Power Supply CWT-400BDP
- Model #: 744623302263
- Item #: 9SIVB8UKCV8239
- Return Policy: Magicpower Return Policy
Refurbished: 300W Switching Power Supply PCSA-300P-X2V
- Model #: 753525940916
- Item #: 9SIVB8UKAA4938
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For 0235G6ES STLZ01CFBA 0235G6RF STLZ01CFBB S2600T S5600T
- Model #: 716837095774
- Item #: 9SIVB8UKX62598
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for FSP300-60WS2 ST-150UB-05E ST-180FUB-05E ST-220FUB ...
- Model #: 716837086499
- Item #: 9SIVB8UKX59188
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for S7503E S7506E switching power supply LSQM1AC1400 PSR1400-A ...
- Model #: 792597727872
- Item #: 9SIVB8UKX32947
- Return Policy: Magicpower Return Policy
Refurbished: PSU For Eltek Switching Power Supply MINIPACK 48/800 WI MINIPACK 48/800 ...
- Model #: 753525936766
- Item #: 9SIVB8UKA99495
- Return Policy: Magicpower Return Policy
Refurbished: For PA-4131-2 34-1891-01 Power Supply
- Model #: 752804573487
- Item #: 9SIVRWKKXB1708
- Return Policy: Nytke team Return Policy
Refurbished: FSP 400W Power Supply ATX-400PNF ATX-500PNF
- Model #: 753525936728
- Item #: 9SIVB8UKA99480
- Return Policy: Magicpower Return Policy
Refurbished: 1200W NXA-PAC-1200W-PI 341-0730-01 Nexus 9000 Power Supply
- Model #: 724780183103
- Item #: 9SIVB8UKA98983
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply MRW-3500V-R 500W
- Model #: 703454720325
- Item #: 9SIVB8UKAJ6490
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For DD-2112-1SA1 DC 48V Power Supply NCS1010-DC-PSU ...
- Model #: 792597703784
- Item #: 9SIVRWKKXD2454
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO PSU For 3Y 380W Switching Power Supply YM-2381A 9ACPSU-0010 ...
- Model #: 744623298603
- Item #: 9SIVB8UKCU6469
- 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.
