Provides connection for RS422 devices via any available USB port Fully compliant with USB Specification 1.1, USB 2.0 compatible Provides one 9 Way Male Serial Port for device connection Supports data transfer rates of up to 3 Mbps Supports Remote Wake-Up and Power Management Supports Hot-Swapping so you can quickly switch serial devices without shutting down your computer USB bus powered USB cable length appr. 1m Compatible with Windows ME/2000/XP/Vista/7/8, Mac OS 9 and higher, Linux