"The equip 133392 USB-A to Serial DB9 adapter lets you connect your USB devices to your legacy serial devices. Converts a USB port on your laptop or computer to a Serial DB9 with COM port retention. This gives you a cost-effective and convenient way to connect to serial devices such as POS terminals, serial modems, industrial equipment and a host of other RS232 peripherals.

Compatible with Windows, MacOS and Linux operating systems, so it can be easily integrated into heterogeneous environments."