Power Supplies - Showing 2257 - 2280 of 17980 Products
Refurbished: 1pcs for X306M power supply 24R2673 24R2674 39Y7295 API4FS40-030L
- Model #: 726099252303
- Item #: 9SIVRWKKXD1623
- Return Policy: Nytke team Return Policy
Refurbished: 3Y 1U 150W Power Supply YM-5501E
- Model #: 753525945607
- Item #: 9SIVB8UKA99630
- Return Policy: Magicpower Return Policy
Refurbished: R48-3500E4 48V/3500W For Vertiv High-efficiency Communication Power ...
- Model #: 753525955682
- Item #: 9SIVT8HKWF2639
- Return Policy: YunYunKeJiShiZhuangDian Return Policy
Refurbished: For F5 FNP300 1600 3600 3900 Power Supply FNP300-1012S144G
- Model #: 726727723144
- Item #: 9SIVRWKKXA2314
- Return Policy: Nytke team Return Policy
Refurbished: For MW SD-1000H-48 Single Group Output Converter Power Supply
- Model #: 753525987324
- Item #: 9SIVB8UKAA8764
- Return Policy: Magicpower Return Policy
Refurbished: For DPS-250AB-24 B 250W NAS Network Equipment Power Supply
- Model #: 726727722772
- Item #: 9SIVRWKKXA2336
- Return Policy: Nytke team Return Policy
Refurbished: 24V2.5A 60W LED Power Supply H60W-SD-24
- Model #: 753525941807
- Item #: 9SIVSYTKUV2013
- Return Policy: SuZhouLiYuanLiXinBaiHuo Return Policy
Refurbished: CWT SATA*4 200W Power Supply DSJ200P
- Model #: 753525942811
- Item #: 9SIVB8UKAA5156
- Return Policy: Magicpower Return Policy
Refurbished: For YM-2461A YM-2461AAR YM-2651Y YM-2651R YM-2651K KAR Power ...
- Model #: 726727818369
- Item #: 9SIVRWKKXB1325
- Return Policy: Nytke team Return Policy
Refurbished: For GW-160SAH Recorder Power Supply
- Model #: 752804576556
- Item #: 9SIVRWKKXB2109
- Return Policy: Nytke team Return Policy
Refurbished: For R720 5NF18 6W2PW 9PXCV E750E-S0 F750E-S0 D750E-S1
- Model #: 726727821192
- Item #: 9SIVRWKKXB1544
- Return Policy: Nytke team Return Policy
Refurbished: Server Power Supply For Huntkey HK600-11PEP 500W
- Model #: 724780183066
- Item #: 9SIVB8UKA98966
- Return Policy: Magicpower Return Policy
Refurbished: 1680W Power Supply PWS-1K68A-1R
- Model #: 753525944518
- Item #: 9SIVB8UKAA5375
- Return Policy: Magicpower Return Policy
Refurbished: KHACHIMO 495W Power Supply 7315446 DS495SPE-3
- Model #: 759950249075
- Item #: 9SIVB8UKDF9559
- Return Policy: Magicpower Return Policy
Refurbished: Industrial Power Supply FSP400-60AGGBQ 400W Can Replace FSP400-60PFI
- Model #: 753525933932
- Item #: 9SIVB8UKA99217
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for LP2-4250F AT power supply with P8 P9 interface Industrial computer ...
- Model #: 792597713929
- Item #: 9SIVRWKKXD5582
- Return Policy: Nytke team Return Policy
Refurbished: For 078-000-192-00 078-000-155 XT380/480/680
- Model #: 726727821369
- Item #: 9SIVRWKKXB1566
- Return Policy: Nytke team Return Policy
Refurbished: 1Pcs for network power supply DS850-3 power module 3.3V
- Model #: 792597727049
- Item #: 9SIVB8UKX32605
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS for 03058981 10GbFE 5800 V5 10GB 4 Ports
- Model #: 792597708765
- Item #: 9SIVRWKKXD3946
- Return Policy: Nytke team Return Policy
Refurbished: Powerleader 1U 600W Switching Power Supply U1A-C20600-D
- Model #: 753525941258
- Item #: 9SIVB8UKAA4979
- Return Policy: Magicpower Return Policy
Refurbished: For DL320E G8 V2 726704-001 718785-001 711797-101 Server Power Supply
- Model #: 726727725780
- Item #: 9SIVRWKKXA2580
- Return Policy: Nytke team Return Policy
Refurbished: FSP600-40MRA(M) 600W For FSP Medical FSP600-40MRA Switching Power ...
- Model #: 753525949292
- Item #: 9SIVB8UKAA0081
- Return Policy: Magicpower Return Policy
Refurbished: 1PCS For 03N5633 80P4387 RIO-2 Loop Adapter Module for DS8000
- Model #: 716837095712
- Item #: 9SIVB8UKX62620
- Return Policy: Magicpower Return Policy
Refurbished: Nexus7000 3000W Power Supply N7K-AC-3KW 700-010646-0000 ...
- Model #: 703454716205
- Item #: 9SIVB8UKAJ6046
- 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.
