Power Supplies - Showing 2377 - 2400 of 18352 Products
Refurbished: For SR6604/08/16 650W Power Supply LSQM1AC650/PSR650-A
- Model #: 726099251375
- Item #: 9SIVRWKKXD1485
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO For FSP 80plus Gold 1U 400W Switching Power Supply ...
- Model #: 744623316710
- Item #: 9SIVB8UKD64470
- Return Policy: Magicpower Return Policy
Refurbished: S5300 S5328 Switch S5700 Communication S2300 Power Supply S3300 ...
- Model #: 703454717806
- Item #: 9SIVB8UKAJ6208
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for CRPS800B2 server power supply 800W
- Model #: 792597725717
- Item #: 9SIVRWKKXD9490
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply For POWERLD 500W Power Supply PSD500S55
- Model #: 759950243080
- Item #: 9SIVB8UKDA8941
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for R620 R720 R820 Server Power Supply 1100W E1100E-S0 NTCWP
- Model #: 792597705375
- Item #: 9SIVRWKKXD2717
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for L240AM-02 AC260AM-00 H240AS-02 L240AS-01 L260EBM Power ...
- Model #: 792597982394
- Item #: 9SIVB8UKX56678
- Return Policy: Magicpower Return Policy
Refurbished: Disassembly Switching Power Supply LEB225F-0524-R
- Model #: 753525956948
- Item #: 9SIVB8UKAA8918
- Return Policy: Magicpower Return Policy
Refurbished: INSPUR RQ940 NF8470M3 R12-1K6P2A 1600W High Quality
- Model #: 753525988345
- Item #: 9SIVTE8KXH6392
- Return Policy: Coretix Return Policy
Refurbished: KHACHIMO For 3Y 405W Switching Power Supply YM-5411B
- Model #: 744623315058
- Item #: 9SIVB8UKD21927
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Power Supply For Power-one 250W CPA250-4530G
- Model #: 759950247545
- Item #: 9SIVB8UKDF9393
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for DPS-460db 4A 3A power supply 450-500W
- Model #: 716837092667
- Item #: 9SIVB8UKX61541
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for W5010/Ln Medical Power Supply DPS-600AB-11 A ...
- Model #: 792597985319
- Item #: 9SIVB8UKX57261
- Return Policy: Magicpower Return Policy
Refurbished: Switching Power Supply ACE-4158AP ACE-4158AP-RS
- Model #: 753525935660
- Item #: 9SIVB8UKA99364
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 350W Switching Power Supply MRW-6350P-R
- Model #: 744623310480
- Item #: 9SIVB8UKD12105
- Return Policy: Magicpower Return Policy
Refurbished: For PS-2801-9LR Server 800W Power Supply
- Model #: 726727816587
- Item #: 9SIVRWKKXB0691
- Return Policy: Nytke team Return Policy
Refurbished: For TDK-LAMBDA HWS300-5 Switching Power Supply Module 5V/60A
- Model #: 753525988307
- Item #: 9SIVSY0KUT6439
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1PCS for 2498-B80 DCJ3001-02P 60-0300031-02 418665-001 Power Supply
- Model #: 792597711543
- Item #: 9SIVRWKKXD4567
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for R48-2900U Communication Power Module 48V 50A Voltage 48V-58V ...
- Model #: 792597720187
- Item #: 9SIVRWKKXD7828
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for FSP180-50PLA cash register POS machine power supply 1U
- Model #: 792597704224
- Item #: 9SIVRWKKXD2509
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for TS440 TS540 Server 450W Power Supply FSA028 03X4373
- Model #: 716837082828
- Item #: 9SIVB8UKX57485
- Return Policy: Magicpower Return Policy
Refurbished: For 8632N 8664N 8616N-I16 power supply DPS-250AB-47D
- Model #: 752804579519
- Item #: 9SIVRWKKXB2452
- Return Policy: Nytke team Return Policy
Refurbished: For E500 12+4p Power Supply D15-220P FSP200-30AHBAA HK300-11PP
- Model #: 722954721823
- Item #: 9SIVB8UKAA6847
- Return Policy: Magicpower Return Policy
Refurbished: A5E02083152 11-05-500092-1 Original IPC Power Supply
- Model #: 724780779009
- Item #: 9SIVB8UKAA6687
- 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.
