Siemens SIMATIC PLC 6AG1952-1AM00-7AA0 SIPLUS S7-400 MC RAM 4 MB    -25 ... +70 GRD C    MIT CONFORMAL COATING    BASED ON 6ES7952-1AM00-0AA0    .    RAM MEMORY CARD    FOR S7-400, LONG VERSION,    4 MBYTES 6AG19521AM007AA0