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. Extension of file name supports: *.?NC, *.TXT,*.NC, *tap Design characteristics Features LCD 2.4 inch, 65536 colors : display program content, File Folder list, vibrant and visualization Internal MEMORY 2Gb/4Gb/8Gb use to storge and manage NC programs 02 ports of USB 2.0 Protocol RS232 Parallel 50-pin Power switch ON/OFF 04 magnet nuts to mounting on CNC machine 06 buttons: RESET, FUNCTION, BACK, SET, UP, DOWN Function COPY-PASTE, CUT-PASTE, RENAME, DELETE, NEW FOLDER: use to easy management files folders on USB and MEMORY. Function AUTO CUTTING: it can cutting by Percent or Line Number. We can see program content after cutting. Function SEND ? Send program to CNC machine, monitoring program contant when sending Function FORCED SEND ? Forced transfer a program to CNC machines without the required signal from CNC machines (Skip XON) Function RECEIVE ? Receive program / parameter from CNC machine. USB/MEMORY capacity monitoring; Format drive, etc. PACKAGE INCLUDES 1DNC + 1 CABLE + 1 ADAPTER