The 5646446-1 is a Type F receptacle connector from the Z-PACK 2mm HM (Hard Metric) series. It features 88 positions arranged across 8 fully loaded rows and is designed for a right-angle orientation on the PCB. The connector has a module length of 25.00 mm, utilizes ACTION PIN post contacts for a free board mount, and includes a multi-purpose center mating polarization method. Constructed with a UL 94V-0 rated glass-filled polyester housing and phosphor bronze contacts, it is an unshielded, standard crosstalk version suitable for CompactPCI backplane applications.