When serial endpoints outnumber available host ports, a purpose-built converter becomes part of the infrastructure plan. Digi EdgePort/216 brings 16 DB-9 serial ports into a rack-mountable USB form factor, giving teams a cleaner way to connect and manage legacy devices from a modern system. This model is aimed at deployments where port density matters: equipment racks, control rooms, service benches, and integration labs. The rack-mountable design helps keep the installation organized, while the DB-9 interface preserves compatibility with a wide range of serial hardware already in service. For teams supporting long-lived assets, that combination can delay replacement cycles and reduce the friction of mixed-generation environments. Compared with smaller adapters, EdgePort/216 is built for scale. It is the kind of component that earns its place in a production rack because it solves a real operational constraint — too many serial devices, too little native connectivity. For procurement teams, that translates into fewer ad hoc workarounds and a more durable path for legacy integration.