Based on this product's specifications, here are some alternatives and similar models
Optical Fiber Coupler DeLOCK LC Duplex female to LC Duplex female Single-mode metal
Summary description:
The DeLOCK Optical Fiber Coupler is designed for connecting two LC Duplex female connectors in a single-mode configuration. It features a robust metal housing for durability and reliable performance. With dimensions of 12.7 mm in width, 29.2 mm in depth, and 9.3 mm in height, this coupler is compact and easy to install. Ideal for high-speed data transmission, it ensures minimal signal loss and optimal connectivity.