Power Supplies - Showing 2161 - 2184 of 18333 Products
Refurbished: Aruba Power Module 110 V AC 220 V AC PowerSupply JW667A (PSU-1050-AC)
- Model #: PSU-1050-AC NOB
- Item #: 9SIV2GPJ2U9941
- Return Policy: ITS Distribution Return Policy
Refurbished: XK215, NH493, HK595, JH994, MH495, MK9GY, PH333, PW114, WU133, ...
- Parts: Warranty: 30 days
- Labor: Warranty: 30 days
- Model #: HK595
- Item #: 9SIV0FZ3AX3530
- Return Policy: DoDo DIY Return Policy
Refurbished: Dell OEM OptiPlex 7450 All-In-One Desktop 200W Power Supply 3PYMT
- Model #: 3PYMT
- Item #: 9SIV1FGKEH4182
- Return Policy: Parts-People - Dell Parts Experts Return Policy
Refurbished: Dell 750W EPP 80+ Platinum PSU (4V8KD)
- Brand: DELL
- Type: Rack
- Model #: 011110782090
- Item #: 9SIV1MCKK30872
- Return Policy: xByte Technologies Return Policy
Refurbished: Dell 15G/16G 1400W 80+ Platinum 60mm PSU (6C11W)
- Brand: DELL
- Type: Rack
- Model #: 011110924926
- Item #: 9SIV1MCKK56810
- Return Policy: xByte Technologies Return Policy
Refurbished: Dell 750W Reverse Airflow (PSU to I/O) Switch Power Supply (R17R1)
- Brand: DELL
- Type: Switch
- Model #: 011110071026
- Item #: 9SIV1MCKJJ9109
- Return Policy: xByte Technologies Return Policy
Refurbished: Dell 15G/16G 1400W 80+ Platinum 60mm PSU (1CW9G)
- Brand: DELL
- Type: Rack
- Model #: 011110690005
- Item #: 9SIV1MCKK60635
- Return Policy: xByte Technologies Return Policy
Refurbished: Dell 450-AEPZ Conversion kit AC S3048-ON PSU/IO 2xPSU 3xFan
- Brand: DELL
- Type: Rack
- Model #: 011110007155
- Item #: 9SIV1MCKK25557
- Return Policy: xByte Technologies Return Policy
Refurbished: Dell 16G 1400W 80+ Titanium 60mm PSU (277V AC or HVDC only) (J2V6D)
- Brand: DELL
- Type: Rack
- Model #: 011110115836
- Item #: 9SIV1MCKW18713
- Return Policy: xByte Technologies Return Policy
Refurbished: Dell OEM OptiPlex 7760 All-In-One Desktop 240W Power Supply 451FP
- Brand: DELL
- Type: computer-internal-power-supplies
- Model #: 451FP
- Item #: 9SIV1FGKJV7173
- Return Policy: Parts-People - Dell Parts Experts Return Policy
Refurbished: Dell OEM Dimension C521 OptiPlex 740 Desktop Heatsink & Shroud Assembly ...
- Model #: DT221
- Item #: 9SIV1FG7AN7466
- Return Policy: Parts-People - Dell Parts Experts Return Policy
Refurbished: DELL Nd444 800 Watt Nonredundant Power Supply For Poweredge 1900
- Type: Others
- Model #: ND444
- Item #: 9SIV173KED0341
- Return Policy: Digitzy Return Policy
Refurbished: Dell 15G/16G 1100W DC Input Reverse Airflow 60mm PSU (VKY5X)
- Brand: DELL
- Type: Rack
- Model #: 011110122827
- Item #: 9SIV1MCKW18712
- Return Policy: xByte Technologies Return Policy
Refurbished: Dell 550W EPP 80+ Platinum PSU (NCNFF)
- Model #: 011110489296
- Item #: 9SIV1MCKJY0161
- Return Policy: xByte Technologies Return Policy
Refurbished: IBM 39Y7226 39Y7224 39Y720 675 WATT HOTSWAP POWER SUPPLY FOR ...
- Parts: 30 days
- Labor: 30 days
- Model #: 39Y7226 2
- Item #: 9SIV0FZ5B17260
- Return Policy: DoDo DIY Return Policy
Refurbished: Dell 450-AESE Conversion kit AC S4248FBL-ON Z9100-ON PSU/IO 2xPSU ...
- Brand: DELL
- Type: Rack
- Model #: 011110001061
- Item #: 9SIV1MCK9A1875
- Return Policy: xByte Technologies Return Policy
Refurbished: Authentic HP 120W Power Supply for EliteDesk 705 G1 Mini Desktop w/Cord OEM
- Model #: 303752858151
- Item #: 9SIV4G9FXY6320
- Return Policy: Tekswamp Return Policy
Refurbished: MH596, MH595, NH429, P9550, U9087, X9072 ,MC638, ...
- Parts: Warranty: 30 days
- Labor: Warranty: 30 days
- Model #: MH595
- Item #: 9SIV0FZ3AX3546
- Return Policy: DoDo DIY Return Policy
Refurbished: 441830-001 COMPAQ 1200WATT HOT PLUG POWER SUPPLY
- Model #: 441830-001
- Item #: 9SIV173KED0409
- Return Policy: Digitzy Return Policy
Refurbished: DELL W5916 280 Watt Power Supply For Poweredge 750-W5916
- Brand: DELL
- Type: Power Supply
- Maximum Power: 280 W
- Input Voltage: 200-240V
- Output: 280W
- Model #: W5916
- Item #: 9SIV173KED0340
- Return Policy: Digitzy Return Policy
Refurbished: Dell M178R ATX12V Power Supply
- Model #: M178R
- Item #: 9SIV1736N22181
- Return Policy: Digitzy Return Policy
Refurbished: Original HP 65W Power Supply for Pavilion Laptop dv7-1060ec dv7-1065ef ...
- Model #: 303933976800
- Item #: 9SIV4G9FXY5678
- Return Policy: Tekswamp Return Policy
Refurbished: Dell S4048-ON PSU to I/O Fan - Reverse Airflow (3HC75)
- Brand: DELL
- Type: Rack
- Model #: 011110096210
- Item #: 9SIV1MCKN12440
- Return Policy: xByte Technologies Return Policy
Refurbished: FSP450-50ETN DPS-450DP 450 Watt Power Supply For ThinkCentre M83 ...
- Model #: FSP450-50ETN-C
- Item #: 9SIVTE8KWW9140
- Return Policy: Coretix 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.
