Power Supplies - Showing 1897 - 1920 of 17942 Products
Refurbished: 1PCS for RG-PA300I network switching power supply 300W
- Model #: 792597704668
- Item #: 9SIVRWKKXD2650
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for R4875G1 communication power supply 4000W R4875G5
- Model #: 792597717378
- Item #: 9SIVRWKKXD6733
- Return Policy: Nytke team Return Policy
Refurbished: 1pcs for 2247W AC Power Module PAC-2200WF PAC-2200WA S7700
- Model #: 792597720576
- Item #: 9SIVRWKKXD7830
- Return Policy: Nytke team Return Policy
Refurbished: HZ-252 industrial control power monitoring power supply 250W
- Model #: 703454722626
- Item #: 9SIVB8UKAJ6763
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for APR48-3G communication power module 54V 37.5A
- Model #: 792597717729
- Item #: 9SIVRWKKXD7035
- Return Policy: Nytke team Return Policy
Refurbished: 1PCS for 1010 2020 Server Power Supply TPCM3000-ER-1079-R 300W
- Model #: 792597714582
- Item #: 9SIVRWKKXD5823
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for HFE82V-250C750-12-H-C5-1 750V250A 12V contactor
- Model #: 792597719174
- Item #: 9SIVRWKKXD7524
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for GW-MATX220 180w SFX computer small power supply
- Model #: 792597983988
- Item #: 9SIVB8UKX56973
- Return Policy: Magicpower Return Policy
Refurbished: 4.5V60A 270W Power Supply GW-XSP270WV4.5
- Model #: 703454715215
- Item #: 9SIVB8UKAJ5900
- Return Policy: Magicpower Return Policy
Refurbished: R310 Server Power Supply L350E-S0 DPS-350AB-11 A R109K T134K
- Model #: 722954730610
- Item #: 9SIVB8UKAA5629
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Alienware Area 51 R2 R3 R4 R5 R6 R7 1500W Switching Power Supply ...
- Model #: 744623317625
- Item #: 9SIVB8UKD64642
- Return Policy: Magicpower Return Policy
Refurbished: For RX200 S7 S26361-D3190-A100 AC-096 A
- Model #: 726727816402
- Item #: 9SIVRWKKXB0679
- Return Policy: Nytke team Return Policy
Refurbished: MRT-6320P-R 320W Unit B010460014 Server Power Supply
- Model #: 753525947960
- Item #: 9SIVB8UKA99940
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for hard disk video recorder power supply ...
- Model #: 716837089339
- Item #: 9SIVB8UKX60288
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO PFC 80plus Bronze 450W Power Supply Jumper 450B HK550-35FP
- Model #: 744623306520
- Item #: 9SIVB8UKD06221
- Return Policy: Magicpower Return Policy
Refurbished: GPR4850D 53.5V 2900W Communication Power Rectifier Module
- Model #: 753525948660
- Item #: 9SIVT8HKWF3049
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: Power Supply Module For HD11010-3
- Model #: 753525991802
- Item #: 9SIVSY0KUV5078
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: For 15W 24V 0.65A Power Supply S8FS-G01524C
- Model #: 753525988697
- Item #: 9SIVB8UKAA7655
- Return Policy: Magicpower Return Policy
Refurbished: 850W For Performance HPL-850BR-F14C Active Switching Industrial Control ...
- Model #: 753525985658
- Item #: 9SIVB8UKAA9210
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 3Y FLEX SMALL 1U 20Pin+8Pin+4Pin 300W Power Supply ...
- Model #: 759950240911
- Item #: 9SIVB8UKDA0439
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for EDPS-930AB A EX-PWR2-930-AC 740-046492 For EX4200 switching ...
- Model #: 792597708321
- Item #: 9SIVRWKKXD3817
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 2600W Power Supply FSL029 SP57A86675
- Model #: 744623298443
- Item #: 9SIVB8UKCU6451
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO Z800 850W Switching Power Supply DPS-850DB A 468929-004 ...
- Model #: 744623310732
- Item #: 9SIVB8UKD12112
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-300A B-81 B FSP350-20GSV power supply
- Model #: 752804578666
- Item #: 9SIVRWKKXB2383
- Return Policy: Nytke team 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.
