Actiontec Ethernet over Coax Adapter for Homes with MoCA Routers or Existing ECB2500C Connected Requires additional device (ECB2500C) connected to your network router or an existing router with built in MoCA The MoCA Network Adapter bridges the divide betwee Network-security-appliances DRAM Upgarde: 870 128MB to 256MB Good Transmission speed, Portable to handle