Feature: 1. Offline Control: With the offline controller module, you can control the CNC router without connecting to a computer, allowing the CNC router to be placed in locations such as garages and workshops. 2. Manual Control: The axes position can be manually adjusted to set the starting point for engraving. The module also allows manual control of the spindle on or off mode. 3. Simpler Access: After inserting the file into the memory card, the engraving file can be directly recognized. You can also connect the offline module to a computer via a USB cable to transfer files. 4. Perfect Matching: The offline module is compatible with 3018, 3018 PRO CNC routers and other 3018PRO series CNC routers. 5. Easier Working: Simply connect the offline module to the GRBL controller board to operate the CNC router using this module. Specification: Color: White Material: Plastic Item Type: CNC Router Offline Control Module Connection: USB, USB CH340 Software: GRBL Controller, universal G Codes transmitter Input Voltage: 12-36V Main Control Chip: For 328P Driver: A4988 Spindle Drive Chip: MOSFET, recommended 12-36V, within 10A Spindle PWM Speed Regulation: Supported Support: 12V, within 1.5A, recommended maximum current less than 2A, 42, 57 Laser Engraving: Supported Power Interface: 5.5-2.5mm DC interface Package Contents: 1 x CNC Router Offline Control Module 1 x 8P Cable 1 x Memory Card 1 x Memory Card Holder Note: Light reflection and different displays may cause the color of the item to appear slightly different from the real thing. The measurement allowed error is +/- 1-3cm.