Computer Power Supplies

1-30 of 160
Filter by:Sort by:
Change View:
MSI MEG Ai1300P PCIE5 Power Supply

MSI MEG Ai1300P PCIE5 Power Supply

B&H # MSMEGAI1300P MFR # MEG AI1300P PCIE5
$35999
Temporarily Out of Stock
Expected availability: 7-14 business days
ASUS Republic of Gamers Thor 850W 80 Plus Platinum Modular Power Supply

ASUS Republic of Gamers Thor 850W 80 Plus Platinum Modular Power Supply

B&H # ASROGTHR850P MFR # ROG-THOR-850P
Key Features
  • 850W +12V Rail
  • 135mm Wing-Blade Cooling Fan
  • Intel ATX12V
  • 4 x 6+2-Pin PCIe Connectors
$16999
Temporarily Out of Stock
Expected availability: 7-14 business days
New Release

MSI MPG A1000G 1000W 80 PLUS Gold ATX Modular Power Supply

B&H # MSMPGA1000GP MFR # MPGA1000GPCIE5
Key Features
  • 1000W Rated Wattage
  • 80 PLUS Gold Rating
  • 135mm Fluid Dynamic Bearing Fan
  • 0 RPM Fan Mode
$19999
New Item - Coming Soon

SeaSonic Electronics FOCUS Plus 850W 80-PLUS Platinum Modular Power Supply

B&H # SESSR850PX MFR # SSR-850PX
Key Features
  • 850W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Version 2.3
  • 6 x PCI-E Connectors
$18999
In Stock
New Release

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

B&H # COCP9020234N MFR # CP-9020234-NA
Key Features
  • 750W Single +12V
  • 140mm Cooling Fan
  • Intel ATX12V Version 2.4
  • 3 x CPU Connectors
$12995
New Item - Coming Soon

MSI MPG A1000G 80 PLUS Gold Modular Power Supply

B&H # MSMPGA1000GF MFR # MPGA1000GF
Key Features
  • One 1000W +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V
  • 7 x PCIe Connectors
$17999
Special Order
Expected availability: 7-14 business days

Gigabyte UD850GM 850W 80 PLUS Gold Modular ATX Power Supply

B&H # GIGPUD850GM MFR # GP-UD850GM
Key Features
  • 850W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V Version 2.31
  • 4 x PCIe Connectors
$9999
Reg. $139.99
Holiday Savings $40.00
Temporarily Out of Stock
Expected availability: 2-4 weeks

Cooler Master V850 SFX Gold 850W 80 PLUS Gold Modular SFX Power Supply

B&H # COV850SFXG MFR # MPY-8501-SFHAGV-US
Key Features
  • 850W Single +12V Rail
  • 92mm Cooling Fan
  • SFX 12V Version 3.42
  • 6 x PCIe 6+2-Pin Connectors
$14400
Special Order
Expected availability: 7-14 business days

NZXT C750 750W 80 PLUS Gold Modular Power Supply

B&H # NZNPC750MUS MFR # NP-C750M-US
Key Features
  • 750W Single +12V Rail
  • 120mm Cooling Fan
  • ATX 12V v2.4 / EPS 12V v2.92
  • 4 x PCIe Connectors
$11899
Temporarily Out of Stock
Expected availability: 2-4 weeks

Corsair SF Series SF750 750W 80 PLUS Platinum Modular Power Supply

B&H # COPSSF750 MFR # CP-9020186-NA
Key Features
  • 750W Single +12V Rail
  • 92mm Cooling Fan
  • Intel ATX12V Version 2.4
  • 4 x PCIe Connectors
$16799
Temporarily Out of Stock
Expected availability: 7-14 business days

MSI MEG Ai1000P PCIE5 Power Supply

B&H # MSMEGAI1000P MFR # MEG AI1000P PCIE5
$27999
Temporarily Out of Stock
Expected availability: 7-14 business days
New Release

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
In Stock

SeaSonic Electronics PRIME ULTRA Platinum 1000W 80 Plus Platinum Modular Power Supply

B&H # SESSR1000PD2 MFR # SSR-1000PD
Key Features
  • 1000W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V
  • 8 x PCI-E Connectors
$26399
In Stock

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
$7995
Temporarily Out of Stock
Expected availability: 7-14 business days

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
$12995
Temporarily Out of Stock
Expected availability: 7-14 business days

Cooler Master MasterWatt 550 550W 80 Plus Bronze Semi-Modular Power Supply

B&H # COMPX5501AMA MFR # MPX-5501-AMAAB-US
Key Features
  • 550W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX 12V Version 2.4
  • 2 x PCI-e Connectors
$4999
In Stock

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

B&H # LISP850WHITE MFR # SP850 WHITE
Key Features
  • SFX Form Factor
  • 850W Total Power
  • 80+ Gold Certified
  • Fully Modular Braided Cable Design
$14999
Temporarily Out of Stock
Expected availability: 2-4 weeks

SeaSonic Electronics Prime Ultra Titanium Series 750W 80 Plus Titanium Modular ATX Power Supply

B&H # SESSR750TR MFR # SSR-750TR
Key Features
  • 744W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V
  • 4 x PCI-E Connectors
$20999
In Stock

SeaSonic Electronics Prime Ultra Titanium Series 1000W 80 Plus Titanium Modular ATX Power Supply

B&H # SESSR1000TR MFR # SSR-1000TR
Key Features
  • 996W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V
  • 8 x PCI-E Connectors
$34700
In Stock

ASUS Republic of Gamers Strix 550W 80 Plus Gold Power Supply

B&H # ASRSTRIX550G MFR # ROG-STRIX-550G
Key Features
  • 550W Single +12V Rail
  • 135mm Cooling Fan
  • Intel ATX12V
  • 2 x PCI-E Connectors
$8999
In Stock
New Release

Corsair RMx Series RM1000x 1000W 80 PLUS Gold Fully Modular ATX PSU

B&H # COCP9020201N MFR # CP-9020201-NA
$18995
New Item - Coming Soon

be quiet! Pure Power 11 FM 1000W Power Supply

B&H # BEPP11FM1000 MFR # BN676
Key Features
  • 1000W Dual +12 Rails
  • Fully Modular Design
  • Intel ATX 12V Version 2.5
  • 4 x PCIe Connectors
$15990
Temporarily Out of Stock
Expected availability: 2-4 weeks
New Release

Corsair 1000W HX Series HX1200 80 PLUS Platinum Modular Power Supply

B&H # COCP9020139N MFR # CP-9020139-NA
Key Features
  • 1000W of Power
  • 80 PLUS Platinum Efficiency Rating
  • 1 x Mainboard 20+4-Pin Connector
  • 2 x 4+4-Pin Connectors
$25499
New Item - Coming Soon

Corsair RM850 850W 80 PLUS Gold Modular Power Supply (White)

B&H # COCP9020232N MFR # CP-9020232-NA
Key Features
  • 850W Single +12V
  • 140mm Cooling Fan
  • Intel ATX12V Version 2.4
  • 3 x CPU Connectors
$13995
Temporarily Out of Stock
Expected availability: 2-4 weeks

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
$14999
In Stock

be quiet! Straight Power 11 1000W 80 Plus Platinum Modular Power Supply

B&H # BESP11P1100P MFR # BN644
Key Features
  • 999.6W Four +12V Rails
  • 135mm Cooling Fan
  • Sleeved Modular Cables
  • ATX 12V v2.51 / EPS 12V v2.92
$20990
Temporarily Out of Stock
Expected availability: 7-14 business days

be quiet! Dark Power 12 1000W 80 PLUS Titanium Modular Power Supply

B&H # BEDP121000 MFR # BN658
Key Features
  • 1000W +12V Rails
  • ATX12V 2.51
  • Fully Modular Cables
  • 8 x 6+2 PCIe Pin Connectors
$27990
In Stock
New Release

Corsair 1200W HX Series HX1200 80 PLUS Platinum Modular Power Supply

B&H # COCP9020140N MFR # CP-9020140-NA
Key Features
  • 1200W of Power
  • 80 PLUS Platinum Efficiency Rating
  • 1 x Mainboard 20+4-Pin Connector
  • 2 x 4+4-Pin Connectors
$29400
New Item - Coming Soon

Cooler Master MasterWatt 650 650W 80 Plus Bronze Semi-Modular Power Supply

B&H # COMPX6501AMA MFR # MPX-6501-AMAAB-US
Key Features
  • 650W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX 12V Version 2.4
  • 4 x PCI-e Connectors
$6999
Reg. $84.99
Save $15.00
Limited supply at this price
In Stock

Thermaltake Toughpower 750W 80 PLUS Gold Modular Power Supply (Black)

B&H # THPSTPD0750M MFR # PS-TPD-0750MPCGUS-1
Key Features
  • 750W Maximum Output Capacity
  • 80 PLUS Gold Certified and Haswell Ready
  • 12 x 5-Pin SATA Connectors
  • 4 x PCIe (6 + 2-Pin) Connectors
$9699
In Stock

YOUR RECENTLY VIEWED ITEMS

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.