Convert a DB9 female connector into an RJ45 female connector. The GC98MF Modular Adapter features a DB9 male connector and an RJ45 female connector. Used for modular RS232, RS422 and RS485 connections, the adapter converts a DB9 female connection into an RJ45 female connection. The adapter allows for custom serial pin out configurations.The DB9M/RJ45F adapter is backed by lifetime warranty, guaranteeing long-lasting durability.