Check the listing for details. GRBL1.1 USB Port 3 Axis 4 axis Control Board 8825 Driver CNC Engraving Machine. Condition: New. Listed at 27.68 USD. Description : Product Name:4 Axis 3.0 Control Board/ 3 Axis 4.0 Control Board Product Specifications:4 Axis/ 3 Axis Package Size:185mm*115mm*55mm Package Weight:300g Product Size:122mm*87mm Product Weight:150g Operating System:Window/Linux/Mac Interface Type:TypeC Supply Voltage:DC24V- 5A Software Support:Candle/LaserGRBL/LightBurn/USG 4988 Driver Features --Low RDS (on) output --Automatic current decay mode detection/selection --Mixed and slow current decay mode --Low power dissipation synchronous rectification --Internal UVLO --Cross current protection --3.3 and 5 V compatible logic power supplies --Thermal shutdown circuit --Ground short circuit protection --Load short circuit protection --Five optional step modes: Full, 1/2, 1/4, 1/8 and 1/16 DRV8825 Driver Features --The maximum current is 2.5A. --the highest support for 32 subdivisions. --4 layer PCB board, better heat dissipation performance. --the chip internal resistance is smaller, lower heat, better heat dissipation. --Size: 1.5mmX2mm (same as 4988) --Driven current: 2.5A --Subdivision: 1, 1/2, 1/4, 1/8, 1/16, 1/32 --Manufacturing process: SMT placement machine manufacturing, non-manual welding, higher yield, more stable performance 3 Axis Control Board --Double y-axis, all-round use,XYZ or XYY. --Stepper drive setup subdivision. --Integrated 3 A4988 drivers, directly connect to four wire stepper motor. --Support Laser or Spindle. --Support 12V, 5V with TTL and without TTL laser. --Adjustable driver subdivision. --Support the xyz limit switch, probe interface. --Support external Offline Controller(Optional). --A4988 can be replaced with 8825 driver. 4 Axis Control Board --ARM32-bit MCU control board, running faster, the maximum no-load speed reaches 40000mm/min, better algorithm optimization, less vibration when the machine moves at high speed, and more stable performance; --X/Y/Z/A four-axis drive, Y-axis dual drive. Support for rotary axis --The control board power supply and line number circuit use optocoupler isolation, the entire control board is safer, more stable, and has strong anti-interference ability --External 300W/500W spindle --Split design, control, drive and expansion boards can be replaced --limit switches, 5V/12V/24V constant voltage pins --Can be connected to a high-power driver --Stepper drive subdivision adjustable --Can connect 775 motor/3pin laser 4pin laser/offline controller. Reserve 24V, 12V, 5V power output ports to facilitate the expansion of various functions --PWM/TTL software to adjust laser power --Support USB flash firmware, firmware upgrade is more convenient *Type C data cables have all been replaced with white. Connect to 300/500w spindle motor Connect to 775 spindle motor Connect to external drivers