The SAMTEC BBD-121-G-B is a machined board stacking strip connector designed to provide a low-profile, reliable connection between boards. It combines the flexibility of a separable connection with the approach to reliability of a permanent connection. Available in various configurations and plating options (Gold or Tin over Nickel), this connector is suitable for applications requiring precise board spacing and secure connections. The insulator material is typically Black Glass Filled Polyester or Black High Temp Nylon, and the terminal material is Phosphor Bronze or Brass. It is RoHS compliant and lead-free solderable, offering versatility in manufacturing processes.