A20B-1001-0430 Fanuc servo control board for the Fanuc AC servo amplifier unit. This servo command pcb is fitted to the smallest of digital servo boards usually fitted on EDM machines. 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 A20B-1001-0430 Fanuc servo boards. The tiny metal base units are also supported by DNC, as well as transistor modules and fuses.