Micro Connectors (ASIX Electronics or MosChip Semiconductor Technology Ltd.) High Speed USB 2.0 to dual Serial Connectors Adapter Cable. The driver should automatically plug-and-play install on most MS Windows system but you should be able to download the driver from https://microconnectors.com/technical-support/. (E07-162 715860019610)
Converts a USB port into TWO standard 9-pin serial ports.
Supports USB Specification v1.1/2.0 Compliant.
Supports the RS 232 Serial interface (standard 9-pin serial).