Based on this product's specifications, here are some alternatives and similar models
Interface Card EXSYS EX-44343
Summary description:
The EXSYS EX-44343 is a PCIe interface card featuring 4x 9-Pin D-SUB M, 1x 25-Pin D-SUB FM, and 1x 4-pin connectors. It supports data transfer rates of 0.1 Mbit/s and is compatible with various operating systems including Windows and Linux. With a compact design (120 mm width, 66 mm depth) and a weight of 550 g, it is CE, FCC, ROHS, and WHQL certified, ensuring reliability and safety for your PC setup.