http://www.motorola.com/Video-Solutions/US-EN/Products-and-Services/Voice-and-Data-Consumer-Premise-Equipment/DOCSIS-Modems-Gateways-and-eMTAs/Cable-Modems/SB5101_US-EN
http://www.netscreen.com/products/appliances.html#ns5xp_xt
http://www.cablelabs.com
http://www.packetcable.com
http://www.cablemodem.com