Cisco HWIC-4B-S/T network card Internal Ethernet

Cisco® integrated services routers offer a wide variety of WAN connectivity modules to accommodate the range of application needs in customer networks. The Cisco 4-Port ISDN BRI S/T High-Speed WAN Interface Card offers BRI-S/T-port-based WAN connectivity for modular routers deployed in small to medium-sized businesses (SMBs) and enterprise branch offices.