=====Specification===== Control chip: 32bit Memory capacity: 256mb MEMS: built in Seamless reset technology: built in USB: USB2.0 Bluetooth: built in Input: 12V or 24V Supported control software: NEJE series control software/APP, Lightburn, LaserGRBL. {{https://nejetool.oss-us-west-1.aliyuncs.com/wiki/Max4b.jpg}} =====Features===== "One Key Start" feature. After the data is transmitted to the device, it can be controlled offline through the multi-function button, or offline control can be achieved through the C1 custom button. Supports NEJE's brand-new complex process control software and wireless control operations. Optimizes numerous GRBL native firmware bugs. Provides lifetime free firmware upgrade services. Supports wireless real-time control with Lightburn and LaserGRBL. Enables wireless or USB content transfer with Lightburn and LaserGRBL software for "REC" offline work. Built-in advanced seamless reset function, no need for additional reset buttons, easy wiring. 2-year free warranty. Supports independent Z-axis and A-axis, which is generally used for rotary axes. Supports complex processes and safety expansions such as M8, M7, and Door. It can be used for DIY any X, Y, Z, A step motor-driven mechanical structure, with voltage support for 12-24V input. Older Max series devices, such as NEJE 3 Max, NEJE 2S Max, and the first-generation NEJE Max 4, can all be upgraded with this kit. The installation interface is universal, and the mainboard kit comes with a heat dissipation protective shield, surge protection, and electrostatic discharge protection, among other reliability designs. Please do not remove the heat dissipation protective shield, and when installing, pay attention to the wiring sequence and ensure that the input voltage matches the module voltage. {{https://nejetool.oss-us-west-1.aliyuncs.com/wiki/NEJEMAXB.jpg}}