A20B-3900-0281
Fanuc A20B-3900-0281 combined FROM and SRAM plug in module. This Fanuc memory card with part number A20B39000281 is a 128MB FROM + 2MB SRAM memory card and plugs into the main system board. Normally fitted on more complicated Fanuc 0i-D controls with larger ladders and system configs.
DNC currently have these 128MB FROM and 2MB SRAM memory modules in stock.