Z-PACK HM-Zd Connectors TE Connectivity Z-PACK HM-Zd Connector System is for high-speed differential applications. Z-PACK HM-Zd Connectors feature a highly reliable dual beam contact system with fully encompassing grounds dedicated to each differential pair. The footprint is optimized for both routability and system performance with a 1.5mm x 2.5mm row-to-column grid. The robust mating interface ensures correct polarization and alignment. Target applications for the TE Connectivity Z-PACK HM-Zd Connectors include telecommunication equipment such as hubs, routers and switches, data networking equipment such as servers and storage devices, test and measurement equipment, and medical diagnostic equipment.