Maintain access to essential serial equipment without redesigning the host system. The Digi EdgePort/4 adds four DB-9 RS-232 ports through USB, giving infrastructure teams a straightforward way to connect legacy devices from a modern workstation or control computer. This model is well suited to environments where a small number of serial endpoints still need dependable access: service consoles, lab instruments, embedded controllers, and field support stations. The included 1 meter USB A-to-B cable helps shorten deployment time and keeps the installation tidy, especially when the adapter is mounted near the host. Compared with single-port dongles, a four-port design reduces clutter and simplifies device management. It also gives teams a more efficient path to serial expansion when the goal is to preserve existing equipment rather than replace it. For organizations balancing uptime, compatibility, and budget discipline, that matters. Choose the EdgePort/4 when you need a compact, practical serial bridge that keeps legacy hardware connected through USB while minimizing setup friction.