... DDR SDRAMFlash Memory256 MBNetworkingConnectivity TechnologyWiredData Link ProtocolEthernet, Fast Ethernet, Gigabit EthernetSwitching ProtocolEthernetNetwork / Transport ProtocolTCP/IP, ... control, modular design, full duplex capability, Layer 2 switching, auto-sensing per device, DHCP support, VPN ... ¦ 7 ( 6 ) x Expansion SlotInterfaces3 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45 ¦ 1 ...