Adds 1 standard RS-232 serial port to your laptop, desktop, or other host system utilizing a high performance FTDI Chipset 25kV of protection from static electricity and surges to keep your connected equipment safe from damage. COM retention saves the assigned COM port number even after accidental disconnects. Surface mount or DIN-Rail mount this adapter with the included mounting brackets. Supported OS: Windows 11, 10, 8, 7, Linux, and MacOS.