The Siemens 6FX1190-1AA00 RAM board is a 64 KB RAM memory module designed for SINUMERIK/SIROTEC control systems, used to expand available memory in Siemens CNC controllers. Also cataloged as 6FX11901AA00, this RAM module is sold by multiple suppliers as a used/refurbished part intended for SINUMERIK/SIROTEC hardware. Its compact RAM board form factor is compatible with appropriate SINUMERIK control units that require additional memory for programs and data. Before replacement, verify compatibility by matching the exact part number 6FX1190-1AA00 (or 6FX11901AA00) to your controller’s documentation.
