The serial cable CAB-X21MT is used for the following systems: The Cisco 7000 family, Cisco 3600 series, Cisco 2500 series, Cisco 1600 series, Cisco access servers, and AccessPro PC cards. (it may work with other CISCO products) This cable has a LFH60 male connector on the Cisco end and a DB-15 male connector on the network end.