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 Replace PC running a DNC software ********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: This is the basic device, there is no internal memory and you can only use the program copied from a USB memory stick If you need a device with 4GB internal memory, you can choose DNC TITAN from our store (https://www.ebay.com/str/dnccnc) https://www.ebay.com/itm/TITAN-DNC-transport-DNC-TAPE-MODE-for-the-machine-CNC-DNC-USB-READER-RS232/302850724279?hash=item46834f51b7:g:XqkAAOSwplBbeZSG function transfer program into CNC machine memory transmit DNC drip program (works in TAPE mode) receive program or PC / PARAMETER from CNC machine has RS232 DP9 communication port and parallel port (FANUC 50pins) SPECIAL FUNCTIOND : drip feed program to fanuc 6M CNC machine via 50-pin parallel port. in TAPE mode (DNC) There are 4 rear mounted magnets of the device that make it easy to put DNC on CNC machines Reads USB 2.0, SD card CARD of all brands and various capacities. Reading is the long file names up to 255 characters Automatic return to the first file after the trasmitting completely Skip Xon Select the files you want to transfer in a list displayed on the LCD screen Set the function and parameters with the button, displayed directly on the LCD Speed baudrate up to 115200bps (1200,2400,4800, 9600, 19200,38400,57600,115200). Change the data transfer rate for parallel ports. Shipping: International shipping. We will ship with and track no ship: Within 1-2 business days of receiving payment. Package includes DNC x CABLE DP9-DP25 x ADAPTER 12VDC NOTE: You can power the DNC ONE via CABLE RS232, PIN 25 = 24V If on the 25 pin of RS232 on the CNC machine with power you can not use 12vdc adapter