Fanuc twin axis servo drive Alpha iSV2 20/40 A06B-6117-H206 type Fanuc Alpha iSV 2-20/40 (ai SV2-20/40) with Fanuc FSSB interface, reference form FANUC A06B-6117-H206, ready to replace your defective part and to be installed on your CNC machine tools. All the good have been tested before shipment on dedicated test rigs and have a 24 months warranty.