Feature: 1. EXCELLENT CPU: Using 8 core processing CPU, the calculation speed is faster and the processing power is strong. 2. BUTTON OPERATION: Simple handle structure, with 16 buttons operation mode, which is convenient and fast in operation. 3. LARGE CAPACITY: Complete offline operation, support multiple mobile storage transmission methods, 512MB memory, can read large capacity storage mobile devices. 4. HIGH EFFICIENCY: Support power down and breakpoint processing, can store processing location, memorize file name, ensure efficient operation. 5. 2 PROCESSING MODES: High accuracy mode and high speed mode to ensure machining accuracy, with high efficiency and time saving. Specification: Item Type: Engraving Machine Controller Product Material: ABS Model: A18 Processor: DSP Built In Memory: 512MB Display: 3in Single Color LCD Communication Port: U disk, USB data cable Linkage Axes Number: 4 Axes Control Signal: Differential Signal Drive System: Stepper or servo motor Minimum Input Unit: 0.001mm Power Down Protection Function: Support Breakpoint Processing Function: Support External Power Supply Voltage: DC 24V Manual Mode: Continuous, jog, distance Interpolation Method: Straight line, arc, spline curve Soft Hard Limit: Support Maximum Pulse Frequency: 1MHz Password Protection: Support . Package List: 1 x Controller1 x Wiring Board1 x 50 Pin Data Cable1 x USB Cable1 x User Manual Note: Please read the manual carefully before use.