Features 3/4 axis controller: the maximum control axis of T3 controller is 3 axes, and the maximum control axis of T4 controller is 4 axes Multi-I/O point controller mode: The basic I/O of the engraving machine control system is 8 inputs and 7 outputs, which can be expanded to 16*N inputs and outputs, N=1-15. Maximum output current: The open collector output of the engraving machine control system has a maximum output current of 500mA, and the controller can directly drive the relay. Output frequency: pulse orientation adopts differential output, the maximum interpolation pulse output frequency of the controller is 500KHZ Control method: hand-held controller Spindle control method: multi-speed (3-stage 8-speed, 1-way spindle start and stop). Features:T3 Maximum control axis is 3-axis, T4 Maximum control axis is 4-axisMultiple I/O point controller mode, basic I/O is 8 input and 7 output respectively, which can extend 16*N input and output, N=1-15.Open-collector output maximum output current 500mA, can drive relay directly. Pulse orientation adopts differential output, maximum interpolation pulse output frequency 500KHZPrincipal axis control mode: multi-speed (3 paragraph 8 speed, 1 channel main axis start and stop).Compatible with standard G code. support mainstream CAD/CAM software, such as ArtCam, MasterCam, ProE etcTotally independent from PC platform. Directly read files from U Disk.Multi-stage pretreatment, adaptive speed prospective control of machining path, high machining speed, high precision and good machining continuity; Specification:Material: metal plasticType(Optional): T3( 3-axis), T4(4-axis) Controller Size: 21.5*12*3.3cm/8.5*4.7*1.3inInterface board: 15.8*12*3.3cm/6.2*4.7*1.3in Weight: 1204g/42.5oz  Package list:1 x CNC Controller1 x Interface Board1 x Cable1 x U disk Package List