With the equip 133392 USB-C to Serial DB9 Adapter, you can connect your USB devices to your older serial devices. It converts a USB-C port on your laptop or computer into a serial DB9 while maintaining the COM port. This provides you with a cost-effective and convenient way to connect to serial devices such as POS terminals, serial modems, industrial equipment, and a variety of other RS232 peripherals. The adapter is compatible with Windows, MacOS, and Linux operating systems, allowing for easy integration into heterogeneous environments.