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Computer Power Supplies

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CORSAIR HX1500i 1500W 80 PLUS Platinum Modular Power Supply

CORSAIR HX1500i 1500W 80 PLUS Platinum Modular Power Supply

B&H # COHX1500I MFR # CP-9020309
Key Features
  • Fully Modular PSU
  • 1500W Single +12V Rail
  • 140mm Cooling Fan
  • ATX 3.1 Compliant
$38999
In Stock
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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 3.1
  • 1 x 16-Pin 12VHPWR Connector
$26999
In Stock
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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 3.1
  • 1 x 16-Pin 12VHPWR Connector
$22499
In Stock
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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
$23899
In Stock
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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
$99.99
$8999
Save $10.00
In Stock
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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 3.1
  • 1 x 16-Pin 12VHPWR Connector
$19999
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
$19999
In Stock
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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
$3999
In Stock

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
$9999
In Stock
Free Expedited Shipping

CORSAIR RM850x 850W 80 Plus Gold Fully Modular ATX Power Supply (Black)

B&H # CORM850XPSP MFR # CP-9020270-NA
Key Features
  • 850W Single +12V Rail
  • Internal Cooling Fan
  • Intel ATX12V Version 3.1
  • 3 x PCIe 6+2-Pin Connectors
$169.99
$15499
Save $15.00
Limited supply at this price
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CORSAIR RM1000x 1000W 80 Plus Gold Fully Modular ATX Power Supply (Black)

B&H # CORM1000XPSP MFR # CP-9020271-NA
Key Features
  • 1000W Single +12V Rail
  • Internal Cooling Fan
  • Intel ATX12V Version 3.1
  • 4 x PCIe 6+2-Pin Connectors
$209.99
$19999
Save $10.00
Limited supply at this price
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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
$4199
In Stock
Free Shipping for this Item

SeaSonic Electronics Vertex GX-850W 80-PLUS Gold PCIE5 Modular Power Supply

B&H # SEVRTXGX850 MFR # VERTEX GX-850
Key Features
  • 850W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V
  • 1 x PCIe 5.0 Connector
$14999
In Stock
Free Expedited Shipping

SeaSonic Electronics CORE GX ATX 3 650W 80 PLUS Gold Modular Power Supply

B&H # SECR2GX650A3 MFR # CORE V2 GX-650 (ATX3)
Key Features
  • 650W Single +12V Rail
  • 120mm Hydro Dynamic Bearing Cooling Fan
  • Intel ATX 3.1 | Fully Modular
  • 1 x Native 12V-2x6 Cable
$9999
In Stock
Free Expedited Shipping

SeaSonic Electronics CORE GX ATX 3 750W 80 PLUS Gold Modular Power Supply

B&H # SECR2GX750A3 MFR # CORE V2 GX-750 (ATX3)
Key Features
  • 750W Single +12V Rail
  • 120mm Hydro Dynamic Bearing Cooling Fan
  • Intel ATX 3.1 | Fully Modular
  • 1 x Native 12V-2x6 Cable
$10999
In Stock
Free Expedited Shipping

SeaSonic Electronics FOCUS GX ATX 3.1 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
In Stock
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ASUS ROG LOKI SFX-L Titanium 1200W Modular Power Supply

B&H # ASRL12TSFXLG MFR # ROG-LOKI-1200T-SFX-L-GAMING
Key Features
  • SFX-L Form Factor
  • ATX 3.1 Compatible
  • 1200W Total Output
  • Modular Cable Design
$30999
In Stock
Free Expedited Shipping
New Arrival

CORSAIR HX1200i 1200W 80 PLUS Platinum Modular Power Supply

B&H # COHX1200I MFR # CP-9020307
Key Features
  • Fully Modular PSU
  • 1200W Single +12V Rail
  • 140mm Cooling Fan
  • ATX 3.1 Compliant
$34499
In Stock
Free Expedited Shipping

CORSAIR RM750x 750W 80 Plus Gold Fully Modular ATX Power Supply (Black)

B&H # CORM750XPSP MFR # CP-9020285-NA
Key Features
  • 750W Single +12V Rail
  • Internal Cooling Fan
  • Intel ATX12V Version 3.1
  • 2 x PCIe 6+2-Pin Connectors
$134.99
$11999
Save $15.00
Limited supply at this price
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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
$25999
In Stock
Free Expedited Shipping

ASUS 1000W TUF Gaming Gold Modular ATX Power Supply (Black)

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
$17056
In Stock
Free Expedited Shipping

CORSAIR HX1200i 1200W 80 Plus Platinum Modular ATX Power Supply (Black)

B&H # COHX1200IPS MFR # CP-9020281-NA
Key Features
  • 1200W Single +12V Rail
  • Internal 140mm Cooling Fan
  • Intel ATX12V Version 3.1
  • 12VHPWR 16-Pin Connector
$354.99
$31999
Save $35.00
Limited supply at this price
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Gigabyte P650G 650W 80 PLUS Gold Power Supply

B&H # GIP650G80PG MFR # GP-P650G GUS1
Key Features
  • 650W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX 12V v2.31 Form Factor
  • 4 x PCIe 6+2-Pin Connectors
$6999
In Stock
Free Expedited Shipping

CORSAIR RM850e Cybenetics Gold Modular 850W Power Supply

B&H # CORM850EAPS MFR # CP-9020296-NA
Key Features
  • 850W Single +12V Rail
  • 120mm Rifle Bearing Cooling Fan
  • ATX 3.1 Compatible
  • PCIe 5.1 Compatible
$144.99
$11999
Save $25.00
Limited supply at this price
In Stock
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CORSAIR RM1200x SHIFT 80 PLUS Gold Modular Power Supply

B&H # CORM1200XPS MFR # CP-9020254-NA
Key Features
  • 1200W Total Wattage
  • ATX 12V Version 3.1
  • 12VHPWR Cable
  • 8 x PCIe Connectors
$254.99
$22999
Save $25.00
Limited supply at this price
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SeaSonic Electronics FOCUS GX ATX 3.1 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
$15999
In Stock
Free Expedited Shipping

CORSAIR RM850x Shift Cybenetics 850W 80 PLUS Gold Modular Power Supply

B&H # CORM850XPSW MFR # CP-9020274-NA
Key Features
  • 850W Single +12V Rail
  • Fully Modular Design
  • 140mm Cooling Fan
  • ATX12V Version 3.0 & EPS12V Version 2.92
$189.99
$16999
Save $20.00
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Thermaltake Toughpower SFX 1000W 80 PLUS Platinum Power Supply

B&H # THTPS1000BK MFR # PS-STP-1000FNFAPU-1
Key Features
  • 1000W Single +12V Rail
  • 90mm FDB Cooling Fan
  • Intel ATX Version 3.1, SFX 12V 4.1
  • PCIe 12V-2x6 Connector
$19999
Special Order
Expected availability: Jun 20, 2025
Free Standard 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.

 

 

Whatever You Need, We've Got It