Power Supplies - Showing 1921 - 1944 of 17939 Products
Refurbished: KHACHIMO 1U 400W Switching Power Supply SS-400H1U
- Model #: 744623299501
- Item #: 9SIVB8UKCU6637
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 490 285 280 480 G2 180W Power Supply 794974-001 801550-001 ...
- Model #: 744623299358
- Item #: 9SIVB8UKCU6575
- Return Policy: Magicpower Return Policy
Refurbished: For 3Y YM-6621B YM-6621BAR Server Redundant Power Module 620W
- Model #: 722954729041
- Item #: 9SIVB8UKAA5496
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for GPS-400AB C 400W Desktop PC, Chassis ATX Power Supply
- Model #: 792597716937
- Item #: 9SIVRWKKXD6700
- Return Policy: Nytke team Return Policy
Refurbished: P720 900W Server Power Supply DPS-900EB A 54Y8979
- Model #: 722954988172
- Item #: 9SIVB8UKAA6554
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 9PA4009300 FSP400-60PFI industrial control equipment machine ...
- Model #: 792597711505
- Item #: 9SIVRWKKXD4551
- Return Policy: Nytke team Return Policy
Refurbished: For ZWQ130-5222/A TDK-LAMBDA Switching Power Supply
- Model #: 703454720912
- Item #: 9SIVSY0KUT0403
- Return Policy: LiAnMengYuShangDian Return Policy
Refurbished: Server Industrial Power Supply P1U-6150P 150W 1U
- Model #: 703454925171
- Item #: 9SIVSYTKUT4587
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: Power Supply NLP150L-96S5 100-24VAC
- Model #: 753525988512
- Item #: 9SIVB8UKAA7676
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO NS-5400 400W Power Supply NS-5400-PWR-AC ...
- Model #: 759950243509
- Item #: 9SIVB8UKDA9044
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO DC -48~60V 600W Switching Power Supply DPS-600RB-1 A ...
- Model #: 744623307213
- Item #: 9SIVB8UKD06353
- Return Policy: Magicpower Return Policy
Refurbished: For RG-PA2700I Communication Power Module
- Model #: 722954726750
- Item #: 9SIVT8HKWF3237
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: Communication Power Module PDC-350WC-B
- Model #: 703454718865
- Item #: 9SIVB8UKAJ6347
- Return Policy: Magicpower Return Policy
Refurbished: 1pcs for SP382-TS 380W 380W Server Power Module
- Model #: 792597722075
- Item #: 9SIVRWKKXD8297
- Return Policy: Nytke team Return Policy
Refurbished: 241119.105 FLATPACK2 48/3000 HE For Eltek Communication Power Module
- Type: ATX
- Model #: 703454923023
- Item #: 9SIVT8HKWF2811
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: KHACHIMO PSU For Hanker 4Pin+2Pin MAX 190W Power Supply ...
- Model #: 726099221538
- Item #: 9SIVB8UKCU6116
- Return Policy: Magicpower Return Policy
Refurbished: YM-4151A For POLYCOM 160W HDX7000 HDX8000 3Y Power Supply
- Model #: 753525948301
- Item #: 9SIVB8UKA99973
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 800 G6 10Pin 210W Switching Power Supply APK004 PA-1211-1 ...
- Model #: 744623308135
- Item #: 9SIVB8UKD06300
- Return Policy: Magicpower Return Policy
Refurbished: MAP55-4002C +12V1A-12V1A12V3A+5V6A
- Model #: 753525954784
- Item #: 9SIVB8UKAA0283
- Return Policy: Magicpower Return Policy
Refurbished: Power Supply uMP1T-S2Q-S2Q-S2Q-S2Q-S2Q-11
- Model #: 753525989038
- Item #: 9SIVB8UKAA7738
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 800W Power Supply DPS-800AB-60A DPS-800AB-60 A ...
- Model #: 744623316536
- Item #: 9SIVB8UKD46506
- Return Policy: Magicpower Return Policy
Refurbished: For Z800 workstation 850w 1100w power supply 508149-001 DPS-1050DB
- Model #: 792597702770
- Item #: 9SIVRWKKXD2210
- Return Policy: Nytke team Return Policy
Refurbished: P15-15 Original Disassembly Switching Power Supply 15V/1A 15W
- Model #: 753525956641
- Item #: 9SIVB8UKAA8896
- Return Policy: Magicpower Return Policy
Refurbished: For 3285153-A HDS HUS FC 8G3285153-A
- Model #: 726727820423
- Item #: 9SIVRWKKXB1514
- 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.
