Based on this product's specifications, here are some alternatives and similar models
Adapter USB 2.0 Type-A to Serial RS-232 D-Sub 9 pin male DeLOCK 62646
Summary description:
The DeLOCK Adapter USB 2.0 Type-A to Serial RS-232 D-Sub 9 pin male is designed for connecting serial devices to your computer. With a cable length of 1.5 m, it provides flexibility and ease of use. The adapter features a sturdy black design and includes screws for secure connection. Ideal for various applications, it ensures reliable data transmission and compatibility with a wide range of devices.