USB\VID_271D&PID_909D drivers

Drivers /  USB /  VID_271D /  PID_909D

Hardware IDs

Modems

USB\VID_271D&PID_909D&MI_03
USB\VID_271D&PID_909D&MI_04

Ports (COM/LPT/Serial)

USB\VID_271D&PID_909D&MI_00
USB\VID_271D&PID_909D&MI_01
USB\VID_271D&PID_909D&MI_02