Features: 1.Applicability: MKS DLC is a motherboard developed for various robots, such as laser engraving, CNC, writing robots, etc. 2. DLC running GRBL open source firmware. TFT24 ofline control. Support Storage Card expansion slot. Power, movement speed, engraving speed adjustable. 3.High Accuracy: Precise positioning and high accuracy engraving, repeatable cycle engraving, low light focus. 4.Stepper Drive: Users can replace the motor driver, support stepper drive, for A4988, for DRV8825, for TMC2208 2209 2225 (Nema17 Motor). 5.Warm Tips: MKS DLC motherboard firmware need to brush their own; TFT touch screen factory default is the firmware of the 3d printer, laser engraving or cnc need to re brush their own firmware (offline screen firmware currently does not support the writing machine). specification:Item Type: MKS Motherboard Product Material: PCB Model: MKS DLC V2.1 Voltage: 12V-24V DC( 20w, Plug Additional Power Supply) Software Compatibility: for Xloader, for GrblController, for Benbox, for MDraw, for GrblL Aser Product Size: Approx.70 x 90mm / 2.8 x 3.5in PackageList: 1 x Motherboard 1 x USB Cable NotePlease note the power polarity and drive orientation. Do not turn the drive or motor on and off while power is applied. Disconnect all motors when adjusting drive current.