I/O connector for SINAMICS V90 PROFINET 20-pole, MDR Contents 5 units SINAMICS I/O connector plug - I/O connector plug for the SINAMICS V90 Profinet servo drive. It is a 20-pin MDR plug connector for the I/O cable available for delivery in a pack of 5 and usable on the drive side. SINAMICS - simply my drive!