Compatible with CNC machines currently uses operating systems such as Fanuc, Mitsubishi, Yasnac, Okuma, Mazak,Haas ... · Replace computer running DNC software.serial rs232 communications · Transfer/Receive CNC program to/from CNC machine. · Drip Feed - if supported by CNC · Backup parameters from CNC machine to USB flash drive. This is a Portable Program Transfer Device that transfers CNC machine programs from a standard USB flash drive (Thumb Drive, Pen Drive, memory stick…) to or from the CNC control through the RS232 communications port, also referred to as Drip feed DNC or Up-Loading & Down-Loading.