Model: Upgrade Version 1610 Pro; Mini CNC machine small size, light weight, USB interface, GRBL control systems, great cnc router machine for beginers;The CNC1610 PRO machine is very easy to install,stable structure Working area: 7.08x3.93x1.77 inches/18x10x4.5cm ; Frame size: 11.81x10.23x9.84 inches/30x26x25cm; Type:USB port Desktop cnc router; Spindle: Dia 45mm 10000rpm max power 120W; ER11-3.175mm can be replaced 0-7mm collet; Nema17 42 stepper motor 1.3A/0.3N.m/42x42x34mm Upgraded GRBL1.1f Control Board: Added the outer casing,emergency stop button port,tool setting/probe port,X/Y/Z axis limit port and add the power button switch,and come with the fan port to force heat dissipation,with enhanced spindle drive,can support max 20000rpm spindle,and also can support 12V 3-PIN 0.5W-20W engraver module Supporting files:G-code nc/txt/tape/gcode; Main application: Can be engraved plastic, wood, acrylic, pvc, pcb, wood and the like material,and soft metal like copper and aluminum and other materials etc GRBL Software: Our parcel include 4G USB flash drive,pls download the installation instructions,user manual and GRBL software from the USB flash drive; System requirements: Windows XP SP3,Win 7,Win 8,Win 10 32/64 can be and Linux, Manufacturer: Changzhou Rattm Motor Co.,Ltd