Sinumerik 840D/De Cnc Hardware Ncu 571.5 B, 900Mhz, 128Mb Without System Soft Ware Memory : Nc3 Mb, Plc 128 Kb Profibus Dp Perpared With Commissioning, Part No. 6Fc5357- 0Bb15-0Aa0 Make: Siemens [ Warranty Period: 30 Months After The Date Of Delivery ] ]