The 2x8A_81_MXP-S50-0-2 from HUBER+SUHNER is an SMT PCB Connector that operates from DC to 40 GHz. It has an MXP-type interface with 2x8 ganged SMT PCB (male, keyed) ports. This 50-ohm connector has a return loss of 20 dB (0-22.5 GHz) and 12 dB (22.5-40 GHz). It is available in a gold-plated brass package with copper beryllium/BZ4 contacts.