Fanuc A20B-3300-0310 PC Board CPU Controller Module

Fanuc A20B-3300-0310 PC Board CPU Controller Module is a 16MB DRAM-equipped CPU controller board designed for Fanuc CNC control systems, delivering dedicated CPU processing and program memory management in a rack-mounted control cabinet. This backplane-connected PC board executes machine logic, coordinates communication between CNC system modules, and handles program execution for CNC machining centers, lathes, and automated manufacturing equipment. Built as a CPU controller PCB, it mounts in Fanuc control racks within industrial cabinets, supporting backplane connector interfaces for reliable system integration across Fanuc CNC control environments. Common replacements include the A20B-3300-0390 PC Board CPU Controller, along with other related boards such as A20B-3300-0300 and A20B-3300-0320, depending on retrofit needs.