Motorola SBG6580 SURFboard eXtreme 3.0 Wireless Cable Modem Gateway - Latest Version Download speeds up to 343 Mbps 8 download and 4 upload channels Compatible with Spectrum and Comcast Xfinity Switchable 2.4/5.0 GHz Dual-band and 802.11n Wi-Fi Includes a 4-Port Gigabit Ethernet Router