Siemens 4-531-2108A Description Description Siemens Siemens CNC Control Card Related products SIEMENS 1FK7022-5AK71-1AG0 SIEMENS 1FK7083-5AF71-1EB3 SIEMENS 1FN1910-0AA20-1AA0 SIEMENS 1FK7103-5AF71-1DH0 SIEMENS 1FK7011-5AK71-1TG3 SIEMENS 1FK6042-6AF71-1TB0