Based on this product's specifications, here are some alternatives and similar models
USB to RS-232 Adapter EXSYS EX-1304 Black Silver
Summary description:
The EXSYS USB/RS-232 Adapter EX-1304 features USB 2.0 and RS-232 connectors, allowing seamless connectivity between modern USB devices and legacy RS-232 equipment. Its sleek black and silver design ensures compatibility with various setups. Ideal for data transfer and device communication, this adapter is a reliable solution for users needing to connect older devices to newer systems.