The SeaLINK+485I is a rugged, industrial-grade USB-to-serial adapter that provides one isolated RS-422/RS-485 port for connecting legacy or industrial devices to USB-enabled systems. Designed for environments prone to electrical interference, the adapter includes built-in isolation to protect against ground loops and surges. Powered entirely by USB and supporting long-distance communication up to 4000 feet, it delivers safe, stable, and high-speed serial data transmission for control and automation applications..