FANUC SPM-100HVi reference FANUC A06B-6121-H100#H550. Each FANUC A06B-6121-H100#H550 Servo amplifier module is tested on dedicated FANUC test rigs. This FANUC Alpha iSP 100HV SPM-100HVi reference FANUC A06B-6121-H100#H550 comes with a 24 months warranty and is ready to replace your defective part.