Cisco 1921/K9. Ethernet LAN data rates: 10, 100, 1000 Mbit/s. WAN connection: Ethernet (RJ-45). Networking standards: IEEE 802.3, IEEE 802.3u, Supported WAN type: 2 x GE. Firewall security: IOS, Security algorithms: 3DES, DES, WPA-AES. Flash memory: 256 MB, Internal memory: 512 MB