USB\VID_271D&PID_903B drivers

Drivers /  USB /  VID_271D /  PID_903B

Hardware IDs

Modems

USB\VID_271D&PID_903B&MI_03
USB\VID_271D&PID_903B&MI_05

Network adapters

USB\VID_271D&PID_903B&MI_07

Ports (COM/LPT/Serial)

USB\VID_271D&PID_903B&MI_00
USB\VID_271D&PID_903B&MI_01