NM-1HSSI Cisco 3640/3620 Single Port Network Module

Cisco 3640/3620 Single Port Network Module. The is a single-port network module designed for use with Cisco 3640 and 3620 routers. It provides High-Speed Serial Interface (HSSI) connectivity, which allows for high-speed data transfer rates of up to 52 Mbps. The Cisco 3640/3620 Single Port Network Module is a high-speed serial interface (HSSI) module that provides a single HSSI port with a maximum data rate of 52 Mbps.