The CISCO Linksys DPC3800 Advanced DOCSIS 3.0 Cable Modem is a high-performance modem designed for cable internet connections. With a maximum downstream data rate of 343 Mbps, this modem offers fast and reliable connectivity for your home or office network. The black unit features one Ethernet port for connecting to a PC or other devices, making it easy to set up and use. Made by Linksys, a trusted brand in networking technology, this modem is a reliable choice for those looking to upgrade their internet connection.