A20B-1001-0470 + A16B-1200-0520 paired Fanuc axis control board for the Fanuc AC velocity unit. These boards are from the first AC generation of Fanuc dual axis command pcbs in which DNC can offer immediate service exchange - shipping out today to anywhere in the world, as well as offer full testing and repair services upon the pair A20B-1001-0470 and A16B-1200-0520 Fanuc axis boards. The metal base units from the AC VCU series are also supported by DNC, as well as transistor modules and fuses. Note: these boards come as a pair - DNC do not seperate the twin AC dual pcbs.