Computer Power Supplies

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Corsair SF1000 80 PLUS Platinum Fully Modular 1000W SFX Power Supply (Black)

Corsair SF1000 80 PLUS Platinum Fully Modular 1000W SFX Power Supply (Black)

B&H # COSF1000P MFR # CP-9020257-NA
Key Features
  • 1000W Single +12V Rail
  • 92mm Cooling Fan
  • Intel ATX12V Version 3.0
  • 1 x 16-Pin 12VHPWR Connector
$23999
In Stock
Free Expedited Shipping
Corsair SF850 80 PLUS Platinum Fully Modular 850W SFX Power Supply (Black)

Corsair SF850 80 PLUS Platinum Fully Modular 850W SFX Power Supply (Black)

B&H # COSF850P MFR # CP-9020256-NA
Key Features
  • 850W Single +12V Rail
  • 92mm Cooling Fan
  • Intel ATX12V Version 3.0
  • 1 x 16-Pin 12VHPWR Connector
$19999
Temporarily Out of Stock
Expected availability: 7-14 Business Days
Free Expedited Shipping

Corsair RM1000e 1000W 80 Plus Gold Fully Modular ATX Power Supply (Black)

B&H # CORM1000EPS MFR # CP-9020264-NA
Key Features
  • 1000W Single +12V Rail
  • Internal Cooling Fan
  • Intel ATX12V Version 3.0
  • 12VHPWR 16-Pin Connector
$15999
Temporarily Out of Stock
Expected availability: Dec 05, 2024
Free Expedited Shipping

Corsair SF750 80 PLUS Platinum Fully Modular 750W SFX Power Supply (Black)

B&H # COSF750P MFR # CP-9020284-NA
Key Features
  • 750W Single +12V Rail
  • 92mm Cooling Fan
  • Intel ATX12V Version 3.0
  • 1 x 16-Pin 12VHPWR Connector
$17999
Back-Ordered
Free Expedited Shipping

Corsair RM750e 750W 80 Plus Gold Fully Modular ATX Power Supply (Black)

B&H # CORM750E MFR # CP-9020262-NA
Key Features
  • 750W Single +12V Rail
  • Internal Cooling Fan
  • Intel ATX12V Version 3.1
  • 12VHPWR 16-Pin Connector
$9999
In Stock
Free Expedited Shipping

Thermaltake Smart 600W 80 PLUS Power Supply

B&H # THPSSPD600NP MFR # PS-SPD-0600NPCWUS-W
Key Features
  • 600W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Version 2.3
  • 2 x PCIe Connectors
$4299
Reg. $46.99
Save $4.00
In Stock
Free Shipping for this Item

SeaSonic Electronics Vertex GX-1200W 80-PLUS Gold PCIE5 Modular Power Supply

B&H # SEVRTXGX1200 MFR # VERTEX GX-1200
Key Features
  • 1200W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V
  • 1 x PCIe 5.0 Connector
$20990
Reg. $229.90
Cyber Week Savings $20.00
In Stock
Free Expedited Shipping

SeaSonic Electronics Vertex GX-1000W 80-PLUS Gold PCIE5 Modular Power Supply

B&H # SEVRTXGX1000 MFR # VERTEX GX-1000
Key Features
  • 1000W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V
  • 1 x PCIe 5.0 Connector
$17490
Reg. $199.90
Cyber Week Savings $25.00
In Stock
Free Expedited Shipping

Cooler Master MWE Gold V2 850W 80 PLUS Gold Modular Power Supply

B&H # COMWE850G2 MFR # MPE-8501-AFAAG-US
Key Features
  • 850W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Form Factor
  • 4 x PCIe Connectors
$8999
In Stock
Free Expedited Shipping

Corsair 1000W SF-L 80 Plus Gold Modular Power Supply

B&H # COSF1000LPS MFR # CP-9020246-NA
Key Features
  • 1000W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Version 3.0
  • 12VHPWR Connector
$15699
In Stock
Free Expedited Shipping

Corsair HX1000i 1000W 80 Plus Platinum Modular ATX Power Supply (Black)

B&H # COHX1000IPS MFR # CP-9020259-NA
Key Features
  • 1000W Single +12V Rail
  • Internal 140mm Cooling Fan
  • Intel ATX12V Version 3.1
  • 12VHPWR 16-Pin Connector
$23499
In Stock
Free Expedited Shipping

MSI MAG A850GL PCIE5 850W 80 Plus Modular Power Supply

B&H # MSMAGA850GLP MFR # MAG A850GL PCIE5
Key Features
  • 850W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Version 3.0
  • 1 x PCIe 5.0 16-Pin Connector
$10999
$99.99 after a$10.00 mail-in rebate
Offer ends
Temporarily Out of Stock
Expected availability: 7-14 Business Days
Free Expedited Shipping

Lian Li Edge Series 1000W 80 Plus Platinum Modular ATX Power Supply (White)

B&H # LIEG1000WEUS MFR # EG1000WE.US
Key Features
  • 1000W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Version 3.1
  • 4 x 6+2-Pin PCIe Connectors
$19990
Special Order
Expected availability: 3-7 Business Days
Free Standard Shipping

MSI MPG A850G PCIE5 850W 80 PLUS Gold Modular Power Supply

B&H # MSMPGA850GP MFR # MPG A850G PCIE 5
Key Features
  • 850W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V Version 3.0
  • 1 x 16-Pin Connector
$14900
$139.00 after a$10.00 mail-in rebate
Offer ends
Temporarily Out of Stock
Expected availability: 7-14 Business Days
Free Expedited Shipping

Corsair CX-M Series CX650M 650W 80 PLUS Bronze Semi-Modular Power Supply

B&H # COCP9020221N MFR # CP-9020221-NA
Key Features
  • 650W Single +12V Rail
  • 120mm Cooling Fan
  • ATX 12V Version 2.4
  • 2 x PCIe Connectors
$7999
In Stock
Free Expedited Shipping

Thermaltake Smart 500W 80 PLUS Power Supply

B&H # THPSSPD500NP MFR # PS-SPD-0500NPCWUS-W
Key Features
  • 500W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Version 2.3
  • 2 x PCIe Connectors
$3906
In Stock

Corsair CX Series CX650 650W 80 PLUS Bronze ATX Power Supply

B&H # COCX650PS MFR # CP-9020278-NA
Key Features
  • 650W Single +12V Rail
  • 120mm Cooling Fan
  • ATX12V Version 2.31
  • 2 x PCIe Connectors
$6646
In Stock
Free Expedited Shipping

Lian Li Edge Series 1300W 80 Plus Platinum Modular ATX Power Supply (Black)

B&H # LIEG1300BEUS MFR # EG1300BE.US
Key Features
  • 1300W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Version 3.1
  • 4 x 6+2-Pin PCIe Connectors
$22990
Temporarily Out of Stock
Expected availability: 2-4 Weeks
Free Expedited Shipping

SeaSonic Electronics Vertex PX-1200 1200W 80 Plus Platinum Modular Power Supply

B&H # SEVRTXPX1200 MFR # VERTEX PX-1200
Key Features
  • 1200W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX 12V
  • 3 x PCIe Connectors
$29242
In Stock
Free Expedited Shipping

MSI 1300W MEG Ai1300 PCIE5 ATX 3.0 Power Supply

B&H # MSMEGAI1300P MFR # MEG AI1300P PCIE5
Key Features
  • 1300W Peak Performance
  • Dedicated PCIe 5.0 Connector
  • Fully Modular Design
  • 80 PLUS Platinum Efficiency Rating
$29999
In Stock
Free Expedited Shipping

Lian Li 850W SP850 80+ Gold SFX Modular Power Supply (Black)

B&H # LISP850BLACK MFR # SP850 BLACK
Key Features
  • SFX Form Factor
  • 850W Total Power
  • 80+ Gold Certified
  • Fully Modular Braided Cable Design
$13899
In Stock
Free Expedited Shipping
New Arrival

SeaSonic Electronics FOCUS GX ATX 3.0 850W 80 PLUS Gold Modular Power Supply

B&H # SEFCSGX850A3 MFR # FOCUS GX-850 (ATX3)
Key Features
  • 850W Single +3.3V Rail
  • 135mm Fluid Dynamic Bearing Cooling Fan
  • Intel ATX 3.0
  • 5 x PCIe/CPU Connectors
$14990
In Stock
Free Expedited Shipping

Lian Li Edge Series 1000W 80 Plus Platinum Modular ATX Power Supply (Black)

B&H # LIEG1000BEUS MFR # EG1000BE.US
Key Features
  • 1000W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Version 3.1
  • 4 x 6+2-Pin PCIe Connectors
$17312
Temporarily Out of Stock
Expected availability: 2-4 Weeks
Free Expedited Shipping

Corsair RM750 750W 80 PLUS Gold Modular Power Supply (White)

B&H # COCP9020231N MFR # CP-9020231-NA
Key Features
  • 750W Single +12V
  • 140mm Cooling Fan
  • Intel ATX12V Version 2.4
  • 3 x CPU Connectors
$12999
Temporarily Out of Stock
Expected availability: 7-14 Business Days
Free Expedited Shipping

ASUS 1000W TUF Gaming Gold Modular ATX Power Supply

B&H # ASTUFGM1000G MFR # TUF-GAMING-1000G
Key Features
  • 1000W Single +12V Rail
  • 135mm Cooling Fan
  • ATX12V Version 3.0 Intel Form Factor
  • 600W 16-Pin PCIe Connector
$15499
In Stock
Free Expedited Shipping

SeaSonic Electronics PRIME PX ATX 3.0 1600W 80 Plus Platinum Modular Power Supply

B&H # SEA3PRPX1600 MFR # ATX3-PRIME-PX-1600
Key Features
  • 1600W +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V Version 3.0
  • 9 x CPU/PCIe 5.0 Connectors
$43599
In Stock
Free Expedited Shipping

Corsair CX-M Series CX750M 750W 80 PLUS Bronze Semi-Modular Power Supply

B&H # COCP9020222N MFR # CP-9020222-NA
Key Features
  • 750W Single +12V Rail
  • 120mm Cooling Fan
  • ATX 12V Version 2.4
  • 4 x PCIe Connectors
$8995
Temporarily Out of Stock
Expected availability: 7-14 Business Days
Free Expedited Shipping
New Arrival

SeaSonic Electronics FOCUS GX ATX 3.0 750W 80 PLUS Gold Modular Power Supply

B&H # SEFCSGX750A3 MFR # FOCUS GX-750 (ATX3)
Key Features
  • 750W Single +3.3V Rail
  • 135mm Fluid Dynamic Bearing Cooling Fan
  • Intel ATX 3.0
  • 5 x PCIe/CPU Connectors
$12990
Temporarily Out of Stock
Expected availability: 2-4 Weeks
Free Expedited Shipping

Choosing Computer Power Supplies

Power supplies are essential components for many desktop computer systems. They sit inside the computer chassis and feature the socket that a power cord connects to. Choosing the right power supply is especially important for gamers and others who may be custom building PCs, since their choice determines if all their machines' components are able to run efficiently.

 

Choosing and Installing a Desktop PC Power Supply

Computer power supplies from brands such as EVGA and Corsair are ranked by efficiency in categories ranging from Bronze to Titanium. This creates a selection of products at different price points, to meet varying power needs. Choose a wattage that meets or exceeds the total watts used by all of your system's components, such as hard drives and graphics cards. Most computers won't need more than 750W, while large, more component-intensive systems require 1000W or 1200W power supplies.

When installing a power supply inside a computer case, it's important to make sure it doesn't restrict airflow so the inner workings remain cooled down. The power supply also has its own cooling fan, which runs with minimal noise. For laptop-based workstations, there are external breakaway box power supplies and expansion chassis that may provide additional PCIe slots.


What Makes a Power Supply Modular

You may see some power supply models described as modular, which means that their internal power cables are detachable from the supply, for a more customized installation. This is especially useful for gaming PC builds, because it lets you attach only the cables you need to the components inside the system, creating more room for airflow. In non-modular power supplies, the cables are permanently attached.


How Server Power Supplies Work

Servers need their own type of power supply for their unique requirements. They feature a different form factor to fit inside rack-mounted servers, and feature redundancies to help prevent any downtime, allowing servers to run continuously. Some server power supplies also offer switches so you can turn off the supply and the server with a switch rather than by removing the power cord.


Whether you're building your own personal PC or running a busy enterprise, B&H Photo and Video has the power supply gear you need to keep them running efficiently.