Specification: Origin: Mainland China Type: Module Condition: New Supply Voltage: DC5 V Model Number: Integrated Circuits Communication Interface: SPI (Serial Peripheral Interface) with three-wire connection Transfer Rate: 10MHz Dimensions: 129mm*32mm*13mm/5.08in*1.26in*0.51in PCB Hole Diameter: 3mm Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 x Dot Matrix Module 1 x 5-pin connector 1 x 5-pin DuPont cable _x005f_x000D_ 1. Versatile LED Display Driver: This dot matrix module features 4 sets of 8x8 dot matrix LED displays, each driven by its own MAX7219 driver IC. 2. Improved Communication: With SPI (Serial Peripheral Interface), this control single chip microcomputer module can easily communicate with other controllers, allowing control of up to 64 individual LEDs and enabling the display of various effects. 3. Expandable and Cascadable: This dot matrix led display module comes with input/output interfaces, making it easy to cascade multiple modules for expanded display capabilities. 4. Wide Range of Applications: Perfect for a variety of public settings such as car destination indicators, advertising screens, and billboards, this matrix diy kit supports dynamic animations and scrolling text, providing endless possibilities. 5. Easy Integration: The single-chip control led module is designed for seamless integration, offering a hassle-free experience for both developers and end-users. Enhance your projects or create eye-catching displays effortlessly with this reliable LED display driver module.