This is a portable program transmitter, which transfers CNC machine programs from a standard USB flash drive (Thumb Drive, Pen Drive, memory card - to) from CNC control via RS232 communication port, also known as DNC Drip load or Upload Download. Rename support file name: *.? NC, * .TXT, *. NC, * tap DNC X transmission is an economical solution with compact design but still provides full TRANSMISSION / RECEIVER features for CNC machines. now there is a new design type, DNC X, it retains the same function and usage as the "old type" DNC ONE and is compactly designed, with a power on and off button. will be replaced for the old version dnc one. If you still want the "old type" as DNC ONE, please leave a message when ordering. Alternatively we may default to shipping "new type" as DNC X. see attached photo for details on "old type" and "new type". they only differ in size Equipment works well for cnc machines such as FANUC, OKUMA,HAAS CNC, MELDAS CNC, YASNAC, HITACHI... If you have difficulty on how to operate the equipment for your cnc machine, do not hesitate to contact us, leave a message in the order so we can help you better. Note : DNC X has no internal memory, only uses the program on USB 2.0 You may be interested in DNC TITAN, they have 4GB of internal memory and show G code program on 2.4 inch LCD screen. http://stores.ebay.com/dnccnc https://www.ebay.com/itm/302683941553 function transfer the program to the memory of the CNC machine drip transmission DNC (works in TAPE mode) receive a program or PC / PARAMETER from a CNC machine RS232 DP25 communication port There are 4 magnets mounted on the back of the device which makes it easy to place DNC X on the CNC machine Read USB 2.0 Transfer speeds up to 115200bps (1200,2400,4800, 9600, 19200,38400,57600,115200)