Siemens 4-531-2128D Description Description Siemens Siemens CNC Control Card Related products SIEMENS 1790L811A SIEMENS 1FK7042-5AK71-1FB0 SIEMENS 1FK6032-6AK71-1TA0 SIEMENS 1FK7063-5AF71-1FG2 SIEMENS 1FK6042-6AF71-1TB0 SIEMENS 1FK7103-5AF71-1DH0