Pre-assembled I/O cable for SINAMICS V90 PROFINET Length (m)=1 m SINAMICS I/O cable - I/O cable for the SINAMICS V90 servo drive. The I/O cable is used between the V90 servo drive and the controller, and is available for delivery in a length of 1 m with 20-pin MDR connector with free pins to the controller side. SINAMICS - simply my drive!