Brand new openbox! Get the most out of your cable Internet and eliminate monthly rental fees with the TC-7620 modem, certified for XFINITY from Comcast and Time Warner Cable. Stream video in HD and game online seamlessly with the high-performance modem's 686Mbps download speed. DOCSIS 3.0 technology enhances your network's security and creates faster throughput with an innovative channel bonding feature.Compatible with cable internet plans up to 300Mbps*,Compatible with major cable ISPs, including XFINITY from Comcast, Cox Communications, Spectrum and more. Maximum cable internet uplink and downlink speeds are the transmission rates that the device is capable of and certified for based on CableLabs DOCSIS 3.0 technology. Actual cable internet uplink and downlink speeds are not guaranteed and will vary according to your cable provider, MSO provisioning, and the speed tier of your subscription. Some modems are not compatible with certain cable providers. Please check with your cable provider to verify whether this modem is compatible with their service. Broadband cable service is required to use this device. Not compatible with voice services. Frequency Range: 88 to 1002 MHz (edge to edge) and 5 to 42MHz (edge to edge); Interface Available: 1 F-Connector (Female 75έ), 1 10/100/1000 Mbps Ethernet Interface (RJ45), 1 Power Jack; Protocols Supported: Network: IP ICMP ARP, Transport: TCP UDP