Power Supplies - Showing 2233 - 2256 of 17989 Products
Refurbished: KHACHIMO Power Supply For TDK-LAMBDA ZWS30 5V6A 30W Power Supply ...
- Model #: 759950246043
- Item #: 9SIVB8UKDA9350
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for JK-PW2013G Fire, Security, Power Supply
- Model #: 792597715114
- Item #: 9SIVRWKKXD6082
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 390 790 990 7010 9010 Power Supply L240AS-00 L240AS-01 ...
- Model #: 744623313337
- Item #: 9SIVB8UKD21717
- Return Policy: Magicpower Return Policy
Refurbished: C4948E-F Series Switches 341-0419-01 300W PWR-C49E-300AC-F
- Model #: 753525984323
- Item #: 9SIVB8UKAA9073
- Return Policy: Magicpower Return Policy
Refurbished: MR483000RN1 For MEGMEET High Efficiency Rectifier Module 48VDC 3000W
- Model #: 724780181390
- Item #: 9SIVB8UKA98788
- Return Policy: Magicpower Return Policy
Refurbished: DS-8664N-I8 8608 8616 8632 64 32 Way 8-Bay Monitoring Main Video ...
- Model #: 722954727498
- Item #: 9SIVB8UKAA7433
- Return Policy: Magicpower Return Policy
Refurbished: For R230 R240 Server Power P59VM P3G94 9J6JG AC250E D250E
- Model #: 726099251504
- Item #: 9SIVRWKKXD1493
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO 800W Switching Power Supply DPS-800AB-62 A DPS-800AB-62A ...
- Model #: 744623311968
- Item #: 9SIVB8UKD19640
- Return Policy: Magicpower Return Policy
Refurbished: R50-12 Original Disassembly Switching Power Supply 12v/4.2A 100V Input
- Model #: 753525987607
- Item #: 9SIVB8UKAA8732
- Return Policy: Magicpower Return Policy
Refurbished: ML370G4 Power Supply 367242-001 344747-501 344747-001 DPS-700CB A
- Model #: 722954724862
- Item #: 9SIVB8UKAA7167
- Return Policy: Magicpower Return Policy
Refurbished: 1Pcs for V7000 G2 controller battery 31P1807 00AR085 2076-112 2076-524
- Model #: 726099252525
- Item #: 9SIVRWKKXD1792
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO AIO FLEX POS NAS Small 1U 200W 300W Switching Power Supply ...
- Model #: 744623305257
- Item #: 9SIVB8UKD01851
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for FLXA5181A server small power supply REV: C00 OPTION: 07LB
- Model #: 726099251658
- Item #: 9SIVRWKKXD1491
- Return Policy: Nytke team Return Policy
Refurbished: EFRP-553V1 EFRP-2553V1 550W Server Redundant Power Module
- Model #: 722954987199
- Item #: 9SIVB8UKAA6456
- Return Policy: Magicpower Return Policy
Refurbished: For SUN U10 Power Supply MPU-250REF 370-3171, MITAC X-250/P 370-4325
- Model #: 722954725883
- Item #: 9SIVB8UKAA7231
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply 300W MHG2-6300P
- Model #: 724780182298
- Item #: 9SIVSY0KUU0563
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: 1PCS for FSB009 /FSE001 power supply test well
- Model #: 792597715343
- Item #: 9SIVRWKKXD6267
- Return Policy: Nytke team Return Policy
Refurbished: KHACHIMO Power Supply EPW20-48A
- Model #: 726099222832
- Item #: 9SIVB8UKCU6287
- Return Policy: Magicpower Return Policy
Refurbished: For BCS box power supply 7001509-Y000 39Y7403 39Y7402
- Model #: 726727775839
- Item #: 9SIVRWKKXA5056
- Return Policy: Nytke team Return Policy
Refurbished: R48-1900 Communication Power Module
- Model #: 724780181598
- Item #: 9SIVT8HKWF2852
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For JBL PRX715 Active Speaker Power Amplifier Module
- Model #: 753525947151
- Item #: 9SIVB8UKA99904
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for ePCSA-500P ePCSA-500P-X2S industrial control, equipment ...
- Model #: 792597711604
- Item #: 9SIVRWKKXD4557
- Return Policy: Nytke team Return Policy
Refurbished: For HS20 4 ** change module OS-CIGESM-1BTT-E 32R1894 32R1895 1pcs
- Model #: 726727730418
- Item #: 9SIVRWKKXA3179
- Return Policy: Nytke team Return Policy
Refurbished: 3040 3650 3250 3040 8Pin 180W Power Supply H180AS-00 H180NS-00 ...
- Model #: 753525945034
- Item #: 9SIVB8UKA99561
- 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.
