Compatibility | Cisco Router 1005; Cisco Router 16XX; Cisco Router 25XX; Cisco Router 36XX; Cisco Router 4500; Cisco Router 4700; Cisco Router 7000 Series; Cisco Router 7400 Series; Cisco Router VPN 7100 Series; Cisco Adapter PA-4T Synchronous Serial Port; Cisco Router 4000 Series; Cisco Access Server; Cisco PC Card Access Pro |