Fanuc A20B-2901-0765 Memory board. Normally this memory pcb interfaces between Fanuc NC and MC.
Running the 21 control config in which it stores the system memory, ladder, and programs. The A20B-2901-0765 can run2 axis 21TB or 3 or 4 axis 21MB machine tool configuration as standard.
A20B-2901-0765 memory pcb is available today, either as exchange or on an outright basis stock dependent with full testing and repair services are available also. Warranty is 180 days on repair or exchange!