Power Supplies

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SeaSonic Electronics FOCUS PX Series 750W 80 Plus Platinum Modular ATX Power Supply

SeaSonic Electronics FOCUS PX Series 750W 80 Plus Platinum Modular ATX Power Supply

B&H # SEFOCUSPX750 MFR # FOCUS PX-750

Key Features

  • 750W Single +12V Rail
  • Intel ATX12V
  • 120mm Cooling Fan
  • 4 x PCIe 8/6-Pin Connectors
$14499
In Stock
Cooler Master MWE Gold 750 750W 80 Plus Gold Modular Power Supply

Cooler Master MWE Gold 750 750W 80 Plus Gold Modular Power Supply

B&H # COMPY7501AFU MFR # MPY-7501-AFAAG-US

Key Features

  • 750W Single +12V Rail
  • 120mm Cooling Fan
  • ATX12V Version 2.31
  • 4 x 8-Pin (6+2) PCIe Connectors
$11999
In Stock

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
$11999
In Stock

SeaSonic Electronics S12III Series 650W 80 Plus Bronze ATX Power Supply

B&H # SESSR650GB3 MFR # SSR-650GB3

Key Features

  • 650W Single +12V Rail
  • 120mm Cooling Fan
  • Intel ATX12V
  • 4 x 8/6-Pin PCIe Connectors
$6499
In Stock

Thermaltake Smart 80 PLUS Power Supply (500W)

B&H # THPSSPD500NP MFR # PS-SPD-0500NPCWUS-W

Key Features

    $4799
    In Stock

    SeaSonic Electronics FOCUS 550W 80 PLUS Gold ATX 12V Power Supply

    B&H # SESSR550FX MFR # SSR-550FX

    Key Features

    • 550W Single +12V Rail
    • Intel ATX 12V Form Factor
    • 2 x PCI-E Connectors
    • 6 x SATA Connectors
    $9999
    In Stock

    SeaSonic Electronics Prime Ultra 750W Platinum Modular Power Supply

    B&H # SESSR750PD2 MFR # SSR-750PD2

    Key Features

    • 750W Single +12V Rail
    • 135mm Cooling Fan
    • ATX Form Factor
    • Modular Cables
    $16499
    6 Mos. Promo Financing*
    Special Order
    Expected availability: 3-5 weeks

    Thermaltake Smart BX1 650W 80 PLUS Bronze ATX Power Supply

    B&H # THPSSPD650B MFR # PS-SPD-0650NNFABU-1

    Key Features

    • 650W Single +12V Rail
    • 120mm Cooling Fan
    • ATX12V 2.3 / EPS 12V 2.92
    • 2 x PCIe Connectors
    $6999
    Special Order
    Expected availability: 7-10 business days
    New Arrival

    Gigabyte GP-P650B 650W 80 PLUS Bronze Power Supply

    B&H # GIGPP650B MFR # GP-P650B

    Key Features

    • 650W Single +12V Rail
    • 120mm Cooling Fan
    • Intel ATX 12V v2.31 Form Factor
    • 4 x PCIe Connectors
    $6999
    In Stock

    be quiet! Straight Power 11 850W 80 Plus Platinum Modular Power Supply

    B&H # BESP11P850PS MFR # BN643

    Key Features

    • 849.6W Four +12V Rails
    • 135mm Cooling Fan
    • Sleeved Modular Cables
    • ATX 12V v2.51 / EPS 12V v2.92
    $17490
    6 Mos. Promo Financing*
    In Stock

    SeaSonic Electronics S12III Series 500W 80 Plus Bronze ATX Power Supply

    B&H # SESSR500GB3 MFR # SSR-500GB3

    Key Features

    • 500W Single +12V Rail
    • 120mm Cooling Fan
    • Intel ATX12V
    • 2 x 8/6-Pin PCIe Connectors
    $5799
    In Stock

    be quiet! Dark Power Pro 11 1200W 80 Plus Platinum Modular Power Supply

    B&H # BEBN655 MFR # BN655

    Key Features

    • 1188W Four +12V Rails
    • 135mm Cooling Fan
    • ATX 12V 2.4 / EPS 12 V 2.92
    • 9 x PCIe Connectors
    $27999
    6 Mos. Promo Financing*
    In Stock

    SeaSonic Electronics S12III Series 550W 80 Plus Bronze ATX Power Supply

    B&H # SESSR550GB3 MFR # SSR-550GB3

    Key Features

    • 550W Single +12V Rail
    • 120mm Cooling Fan
    • Intel ATX12V
    • 2 x 8/6-Pin PCIe Connectors
    $5999
    In Stock

    SeaSonic Electronics FOCUS GM 550W 80 Plus Gold ATX Power Supply

    B&H # SEFOCUSGM550 MFR # FOCUS GM-550

    Key Features

    • 550W Single +12V Rail
    • 120mm Cooling Fan
    • Intel ATX12V
    • 2 x PCIe Connectors
    $8999
    In Stock
    New Arrival

    Gigabyte GP-P450B 450W 80 PLUS Bronze Power Supply

    B&H # GIGPP450B MFR # GP-P450B

    Key Features

    • 450W Single +12V Rail
    • 120mm Cooling Fan
    • Intel ATX 12V v2.31 Form Factor
    • 2 x PCIe Connectors
    $4999
    In Stock

    SilverStone ST45SF V3 450W 80 Plus Bronze SFX Power Supply

    B&H # SIST45SFV3 MFR # ST45SF-V3

    Key Features

    • 450W Single +12V Rail
    • 92mm Cooling Fan
    • Intel ATX12V Version 2.4
    • 1 x 8/6-Pin PCIe Connector
    $7499
    In Stock

    be quiet! Pure Power 11 700W Power Supply

    B&H # BEBN631 MFR # BN631

    Key Features

    • 700W Dual +12 Rails
    • Non-Modular Design
    • Intel ATX 12V Version 2.4
    • 4 x PCIe Connectors
    $9990
    In Stock

    be quiet! Pure Power 11 700W CM Power Supply

    B&H # BEBN630 MFR # BN630

    Key Features

    • 700W Dual +12V Rails
    • Modular Design
    • Intel ATX 12V Version 2.4
    • 4 x PCIe Connectors
    $10990
    In Stock

    Thermaltake Smart Active-PFC 80 PLUS Power Supply (700W)

    B&H # THPSSPD700NP MFR # PS-SPD-0700NPCWUS-W

    Key Features

      $6999
      In Stock
      New Arrival

      Cooler Master V750 Gold V2 750W 80 PLUS Gold Modular Power Supply (White)

      B&H # COV750GV2WM MFR # MPY-750V-AGBAG-US

      Key Features

      • 750W Single +12V Rail
      • 135mm Cooling Fan
      • Modular Cables
      • ATX 12V v2.52
      $13999
      In Stock
      New Arrival

      Corsair CX Series CX550M 550W 80 PLUS Bronze Semi-Modular Power Supply

      B&H # COCX550M MFR # CP-9020102-NA

      Key Features

      • 550W Single +12V Rail
      • 120mm Cooling Fan
      • ATX12V v2.4 & EPS 2.92 Form Factor
      • 2 x PCI-E Connectors
      $7999
      In Stock

      ASUS Republic of Gamers STRIX 750W 80 Plus Gold Modular ATX Power Supply

      B&H # ASRGSTRX750G MFR # ROG-STRIX-750G

      Key Features

      • 750W Single +12V Rail
      • 135mm Cooling Fan
      • 4 x 6+2-Pin PCIe Connectors
      • 8 x SATA Connectors
      $15499
      6 Mos. Promo Financing*
      In Stock

      Cooler Master MWE 550 WHITE - V2 550W 80 Plus Standard ATX Power Supply

      B&H # COMWE550WV2 MFR # MPE-5501-ACAAW-US

      Key Features

      • 550W Single +12V Rail
      • 120mm Cooling Fan
      • 2 x 6+2-Pin PCIe Connectors
      • 6 x SATA Connectors
      $5599
      In Stock

      Fractal Design Ion+ 660P 660W 80 PLUS Platinum Modular Power Supply

      B&H # FRPSUIP660PK MFR # FD-PSU-IONP-660P-BK-US

      Key Features

      • 660W Single +12V Rail
      • 140mm Cooling Fan
      • ATX12V 2.4 / EPS12V 2.92
      • 4 x PCIe Connectors
      $11499
      In Stock

      be quiet! Dark Power Pro 11 850W 80 Plus Platinum Modular Power Supply

      B&H # BEBN653 MFR # BN653

      Key Features

      • 840W Four +12V Rails
      • 135mm Cooling Fan
      • ATX 12V v2.4 / EPS 12V v2.92
      • 7 x PCIe Connectors
      $19990
      6 Mos. Promo Financing*
      Special Order
      Expected availability: 2-4 weeks

      SilverStone SFX Series 700W 80 Plus Platinum Modular SFX-L Power Supply

      B&H # SISX700LPT MFR # SX700-LPT

      Key Features

      • 700W Single +12V Rail
      • 120mm Cooling Fan
      • ATX12V Version 2.4
      • 4 x PCI-E Connectors
      $18699
      6 Mos. Promo Financing*
      In Stock

      Cooler Master Elite V3 400W Power Supply

      B&H # COW401ACAN1U MFR # MPW-4001-ACAAN1-US

      Key Features

      • 400W Single +12V Rail
      • Intel ATX 12V Form Factor
      • 75% Efficiency
      • Non-Modular Design with Sleeved Cables
      $4499
      In Stock

      be quiet! Pure Power 11 600W CM Power Supply

      B&H # BEBN629 MFR # BN629

      Key Features

      • 600W Dual +12V Rails
      • Modular Design
      • Intel ATX 12V Version 2.4
      • 4 x PCIe Connectors
      $9999
      In Stock

      NZXT C650 650W 80 PLUS Gold Modular Power Supply

      B&H # NZNPC650MUS MFR # NP-C650M-US

      Key Features

      • 650W Single +12V Rail
      • 120mm Cooling Fan
      • ATX 12V v2.4 / EPS 12V v2.92
      • 4 x PCIe Connectors
      $10440
      In Stock

      Thermaltake Smart 430W 80 Plus Power Supply

      B&H # THPSPD0430NW MFR # PS-SPD-0430NPCWUS-W

      Key Features

      • 384W Single +12V Rail
      • 120mm Fan with Intelligent RPM Controls
      • Intel ATX12V Version 2.3
      • 2 x PCI-E Connectors
      $4299
      In Stock

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      Choosing 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.

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