: Support includes Windows XP, Vista, 7, 8, and 8.1 (both 32-bit and 64-bit). Driver Installation Guide
For further technical details, you can download the official Icom Instruction Sheet or contact Icom America Support for legacy assistance. OPC Cloning Cable Drivers - Icom America icom opc-1122u driver
To ensure your PC recognizes the cable as a virtual COM port, you must install the Icom USB-to-Serial drivers . : Support includes Windows XP, Vista, 7, 8, and 8