Based on this product's specifications, here are some alternatives and similar models
DELOCK assembly kit: D-Sub 25 pin female to RJ12 female connector, black
Summary description:
Assembly kit for converting a D-Sub 25 pin female (DB-25) interface to an RJ12 female connection. Includes black housings and parts for creating a cable or panel adapter between a 25‑pin D‑Sub socket and a 6‑position RJ12 socket. Suitable for custom cable assemblies, serial/modem or telecommunication wiring where DB‑25 to RJ12 termination is required.