Get from Amazon.com : http://www.amazon.com/gp/product/B00768SBAU?tag=hawaiianlegac-20
Motorola SB6121 DOCSIS 3.0 Cable Modem in Non-Retail Packaging (Brown Box)
101001000Mbps Ethernet port to connect with router or computer
DOCSIS 30 certified capable of up to 172 Mbps and upload speeds up to 131 Mbps based on Cable Internet Service Provider
Requires Cable Internet Service Compatible with major US Cable Providers Contact your ISP to confirm compatibility
Supports IPv4 and IPv6 networking as well as Windows Mac and Linux computers
Front-panel LEDs indicate status and simplify troubleshooting
