SIMOTION drive-based 2 GB CompactFlash card D4x5-2; SINAMICS drive runtime software V5.x and SIMOTION Kernel for SIMOTION D4x5-2; current software version; note: not for SIMOTION D410, D4x5 and D410-2; is compatible with 1 GB CF card 6AU1400-2PA23-0AA0