Motorola SB5101N Surfboard Cable Modem Compatible with major U.S. Cable Providers (Comcast, TWC, Cox, Bright House, & more) Certified 1-Year Full Coverage Warranty 10/100 Ethernet port to connect with router or computer Internet download speeds up to 38 Mbps and upload speeds up to 30 Mbps based on your Cable provider service Specially designed architecture-allows for future upgrades