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. RUN the program, COPY or SEND a notification to DNC 2 from the computer via WIFI network. Create or edit programs directly on DNC devices cut program by% or G CODE LINE Nxxxx. There are 3 rear mounted magnets of the device that make it easy to put DNC on CNC machines. PACKAGE INCLUDES 1DNC + 1 CABLE + 1 ADAPTER. NOTE: You can power the DNC DEVICE via CABLE RS232, PIN 25 = 24V .If on the 25 pin of RS232 on the CNC machine with power(24VDC) you can not use 12vdc adapter