Feature This board is completely solve the traditional 2560 board is not compatible with win7 and win8 system instability Retains the main chip ATMEGA2560 16TW Updated version replacing the usb chip 16U2 in most applications these USB interface chips only as a serial brush and communication With professional usb chip not only can reduce the cost but also can meet applications Note This version is optimized in the original version mainly designed for customer need high product quality and function not only consistent and compatible with the original but also easy to use This version is not suitable for 3D printer if you need this function please buy ID 73020 Click here THis version does not includes USB cablePackage included 1 x MEGA2560 R3 Board