High-Quality Display: The MAX7219 Dot Matrix Module features an 8x8 layout with common cathode LED technology, ensuring bright and clear displays in either red or green. Ideal for various DIY electronics and robotics projects. Versatile Use: This 4-in-1 module can be used in multiple configurations, making it perfect for creating large, eye-catching displays. Whether for educational purposes, advertising, or hobby projects, its versatility makes it a top choice. Easy Connectivity: Comes equipped with DuPont wires, facilitating easy and reliable connections to other hardware components. The 5V operation makes it compatible with most microcontrollers and development boards. A single module can drive an 8*8 common cathode dot matrix Module operating voltage: 5V Module has input and output interfaces and supports multiple module cascade Colour:B Blue Material:ABS Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 * MAX7219 Dot Matrix Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.