Toshiba PCX2500-DAZ8821F-B 43Mbps USB Cable Modem (Discontinued by Manufacturer) RJ-45 Connector on the Toshiba Cable Modem labeled 10BASED-T that connects the modem to a computer or to a HUB. Subscriber: A computer user in the home who accesses a data service using the Toshiba Cable modem. Subnet: A Network subdivision. When subnetting us used, the IP(Internet Protocol) TCP/IP Communication stack: