Motorola SB5101u Surfboard Cable Modem - (Bulk Packaging) Compatible with major U.S. Cable Providers (Comcast, TWC, Cox, Bright House, & more) 10/100 Ethernet port to connect with router or computer Certified 1-Year Full Coverage Warranty Specially designed architecture-allows for future upgrades Internet download speeds up to 38 Mbps and upload speeds up to 30 Mbps based on your Cable provider service