The Actiontec Ethernet Over Coax Network Adapter Kit is a high-speed device that allows for the conversion of Ethernet signals into coaxial signals, allowing for the transmission of data at speeds up to 270 Mbps. This adapter kit, produced by Action-Tec, is designed to easily connect to existing coaxial cables in order to provide a fast and reliable Ethernet connection. It is ideal for improving network speeds in older homes or buildings that still have coaxial cables installed. This adapter kit provides a convenient solution for upgrading network connectivity without the need to replace existing wiring. -Tested good used condition Includes original box, 2 ECB2500C adaptors, 2 wall outlets, and installation guide.