The SeaLINK+4/232 (Model 2401) is a four-port USB-to-RS-232 adapter built to connect multiple legacy serial devices to any USB-enabled host. Each port supports data rates up to 460.8K bps and a max cable length of 50 feet, making it perfect for commercial, industrial, and laboratory applications. Designed with rugged housing and high-retention USB connectivity, it delivers dependable multiport serial expansion through a single USB port..