FANUC A20B--0521 05A I BOARD, part number A20B2002052105A, is an I BOARD in the FANUC A20B series. The listing identifies this exact board by the model designation A20B--0521 05A and the contiguous part number A20B2002052105A, enabling precise identification for ordering or replacement within FANUC CNC systems. This device is aligned with FANUC's standard I/O board lineup, serving as an input/output board component within the controller hardware ecosystem.
