Feature: 1. Offline Control Capabilities: Utilize the offline controller module to use your CNC engraver without a computer, giving you the convenience to position your machine anywhere, like your garage or workshop. 2. Manual Control Options: Easily adjust the XYZ axes positions for accurate engraving starting points and control the spindle's on off mode manually, ensuring complete flexibility during use. 3. Bidirectional File Access: Simply insert files into the storage card for immediate recognition of engraving fields, or connect the offline module to your computer via micro USB for easy file storage. 4. User Friendly Design: Connecting the offline module to the GRBL controller board is straightforward, enabling seamless and efficient control of your CNC engraver with minimal setup hassle. 5. Applicable Models: This offline controller is suited for CNC engraving machines like for 1610, 2418, and 3018, adding versatility to your crafting and woodworking projects. Specification: Item Type: CNC Engraver Machine Offline Controller Board Material: Acrylic Product Application: CNC Engraving Machine Offline Controller Memory Card: Support (memory card not included) . Package List: 1 x Offline Controller 1 x Connecting Cable