The SeaLINK+8/232.RJ (Model 2804) is a compact, rugged USB-to-serial solution designed to connect eight RS-232 devices using RJ45 connectors. With support for high-speed data rates up to 921.6K bps and a high-retention USB Type B port, this adapter is perfect for industrial, commercial, and automation environments needing reliable, secure, and scalable serial communication..