Power Supplies - Showing 409 - 432 of 11996 Products
PowerSpec 650 Watt 80 Plus Gold Fully Modular SFX Power Supply Active PFC SLI Crossfire ...
- Model #: LB09P3PPC84
- Item #: 9SIVB0EHC06398
- Return Policy: Best Electronics Return Policy
16AWG Power Supply Cable Kit 30cm mod Sleeve Extension Sleeved Custom mod for PSU to ...
- Model #: LB086TWKM3W
- Item #: 9SIVB0EHC06376
- Return Policy: Best Electronics Return Policy
Apevia ATX-PM850W Premier 850W 80+ Gold Certified Active PFC ATX Semi-Modular Gaming ...
- Model #: ATX-PM850W-0
- Item #: 9SIVB0EH6W5952
- Return Policy: Best Electronics Return Policy
EZDIY-FAB PSU Extension Cable Sleeved Custom Mod PC Power Supply Cable, Soft Nylon ...
- Model #: LB082WW93HC
- Item #: 9SIVB0EHC06387
- Return Policy: Best Electronics Return Policy
12V LED Power Supply 500W Low Voltage Transformer Adapter,AC90-130V to DC12V 41.7A ...
- Type: Other
- Model #: GB00715
- Item #: 9SIVB0EKAY8946
- Return Policy: Best Electronics Return Policy
ROG Strix 850W White Edition PSU, Power Supply (ROG heatsinks, Axial-tech Fan Design, ...
- Model #: BH0Q7E5ZCX
- Item #: 9SIVB0EHZ88963
- Return Policy: Best Electronics Return Policy
240W Power Supply for Dell Optiplex 3040 5040 7040 3650 3656 SFF 0THRJK 4GTN5
- Model #: a23-683025000274473
- Item #: 9SIVB0EHW03731
- Return Policy: Best Electronics Return Policy
apevia atx-gx1000w galaxy 1000w 80+ gold certified active pfc atx semi-modular gaming ...
- Model #: RNAB0941WP4XB
- Item #: 9SIVB0EH6W5987
- Return Policy: Best Electronics Return Policy
Apevia ATX-GX850W Galaxy 850W 80+ Gold Certified Active PFC ATX Semi-Modular Gaming ...
- Model #: ATX-GX850W-0
- Item #: 9SIVB0EH6W5973
- Return Policy: Best Electronics Return Policy
apevia atx-sp700 spirit atx power supply with auto-thermally controlled 120mm fan, ...
- Model #: RNAB08BZYG24D
- Item #: 9SIVB0EH6W6032
- Return Policy: Best Electronics Return Policy
30V 10A Adjustable DC Power Supply Precision Variable Dual Digital Lab Test 110V
- Model #: pss0922w41
- Item #: 9SIVB0EH6X9796
- Return Policy: Best Electronics Return Policy
Qingsea PSU Cable Synchronous ARGB Extension Sleeved Cable Kit Custom Power Supply ...
- Model #: LB08XZLH3FL
- Item #: 9SIVB0EHF21365
- Return Policy: Best Electronics Return Policy
Lian Li Edge Serie - 1000W Full Modular Power Supply (Fan USB Hub Included) - Gold - ATX 3.1 - ...
- Brand: LIAN LI
- Type: ATX 3.1 Compatible
- Maximum Power: 1000 W
- Modular: Full Modular
- Fans: 1 x 120 mm
- PFC: Active
- Main Connector: 24Pin
- SATA Power Connector: 1 x SATA extender(345mm) 1 x SATA-Y connector (525mm) 1 x SATA connector (850mm) 1 x SATA-Y connector (525mm) 1 x SATA connector (850mm)
- Model #: EG1000G.WH
- Item #: 9SIV0F2KNB5686
- Return Policy: TELeasy Return Policy
60V Power Supply, AC 110V 220V to DC 0-60V 8A 480W Buck Converter Dual Display, Variable ...
- Type: Other
- Model #: GB00730
- Item #: 9SIVB0EKAY9039
- Return Policy: Best Electronics Return Policy
Tekpower TP-3005D-3 Triple Outputs Linear-Type DC Power Supply, 0-30 Volts 0-5 A
- Type: Isolation
- Model #: BHA0946ZXC
- Item #: 9SIVB0EJ0Z2002
- Return Policy: Best Electronics Return Policy
Mini-Box PicoPSU-90 12V DC Input 90 Watt Output + 60W Adapter Power Kit Cyncronix Rating
- Model #: LB0035UETHW
- Item #: 9SIVB0EHF21360
- Return Policy: Best Electronics Return Policy
apevia atx-pm650w premier 650w 80+ gold certified active pfc atx semi-modular gaming ...
- Model #: RNAB09425ZHVZ
- Item #: 9SIVB0EH6W5939
- Return Policy: Best Electronics Return Policy
apevia atx-pm1000w premier 1000w 80+ gold certified active pfc atx semi-modular gaming ...
- Model #: RNAB094277RBX
- Item #: 9SIVB0EH6W5960
- Return Policy: Best Electronics Return Policy
COMeap Starter PSU Modular Cable ATX PCIe EPS HDD Kit for Corsair PSU RMX RMI SF Series ...
- Model #: LB09P8GGQH7
- Item #: 9SIVB0EHC06391
- Return Policy: Best Electronics Return Policy
Allen-Bradley 1769-PA2 CompactLogix AC Power Supply CA
- Model #: BCV0AS6D89
- Item #: 9SIVB0EHC07026
- Return Policy: Best Electronics Return Policy
BestParts New 250W Power Supply Compatible with Synology DS1815+ DS1813+ DS1515+ ...
- Model #: LB09T3L1ZQT
- Item #: 9SIVB0EHAY3827
- Return Policy: Best Electronics Return Policy
GPU Mining Power Supply 2000W 80 PLUS PSU Crypto Miner ETH 16 6+2 PCIE US STOCK
- Model #: 1090106
- Item #: 9SIVB0EH6X5797
- Return Policy: Best Electronics Return Policy
silverstone technology 550 watt 80 plus bronze atx psu with flat black cables et550-b power ...
- Model #: RNAB071HHSY2M
- Item #: 9SIVB0EH6W6766
- Return Policy: Best Electronics Return Policy
KENSINGTON TECHNOLOGY K62147NA SMARTSOCKETS STANDARD SURGE
- Model #: KEN-K62147NA
- Item #: 9SIV0F26JS5216
- Return Policy: TELeasy 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.
