This is a portable program transfer device that transfers CNC machine programs from a standard USB flash drive (USB pen, pen drive, memory stick?) to or from CNC control through the RS232 communication port, also called Drip feed DNC or Up-Loading Down-Loading. File name extension supports: *.?NC, *.TXT,*.NC, *touch Replace the PC running DNC software Compatible with CNC machines currently uses operating systems like Fanuc, Mitsubishi, Yasnac, Okuma, Mazak, Haas... MICRO DNC 3A is equipment used to replace old computer transfer data. When using your computer to transfer data to the CNC machine, it will have some disadvantages: the connection will not be stable, it will waste the surface. So the MICRO DNC 3A device enhanced these benefits to make data transfer easier, faster, and more convenient. MICRO DNC 3A can connect to a computer via wireless LAN (Wifi) to control transmission, copy program between DNC DEVICE and computer MICRO DNC 3A has 4GB of internal memory, has 2 USB 2.0 ports for reading programs in the USB stick transfer the program to the memory of the CNC machine transmit DNC drip program (works in TAPE mode) receive program or PC / PARAMETER from CNC machine Pack includes 1 DNC 3A, 1 12VDC ADAPTER, 1 RS232 DP9 (Female)-DP25 (Male) cable We have a long term customer support regime, throughout the operation of the device. and can help you configure your device to work on CNC machines