EXTreme PowerMass™ High-Current Connector

Part Number Information
Part #: Price/Availability:
75555 Buy Now
75541 Buy Now
45840 Buy Now
75556 Buy Now
75542 Buy Now
46081 Buy Now
46079 Buy Now
75561 Buy Now
75545 Buy Now
75568 Buy Now
75548 Buy Now

Intensifying Molex's approach to provide high-current density and a customer-configurable design, EXTreme PowerMass offers a nearly unlimited range of power and signal module-design options, providing customer-specific interconnect solutions for AC and DC power requirements. EXTreme PowerMass is a high-current, board-to-board, modular connector system, providing 350.0A per inch. EXTreme PowerMass is designed to support power supplies and systems requiring very high-current transfer in challenging and thermal-constrained spaces. EXTreme PowerMass complements Molex's robust power-connector offering.


  • Multiple power (150.0A, 80.0A, 40.0A) and signal (12 to 64 circuits) modules available (provide maximum flexibility for customer design requirements)
  • 350.0A per inch current density (One of the highest capacity board-to-board power connectors on the market)
  • Less than 1 milliohm resistance (plane-to-plane) at end-of-life
  • Provides minimum heat generation with maximum current transfer
  • Press-fit and solder-board termination
    • Easy and reliable PCB mounting options
  • Die-cast or plastic guides
  • Rugged blind-mating capabilities
  • Modules assembled to metal stiffener
  • Assure true position and flexible module placement
  • Sequential power-blade and signal-pin lengths
  • Facilitates post-mate and pre-mate options


  • Telecommunications
    • Networking hubs, switches and routers
  • High and Mid-Range Computing
    • Servers
    • Data storage
  • Power Supplies
  • Cellular Communications
    • Base stations