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 compatible with 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: compatible with 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.