5PCS MAX7219CNG Set: Includes 5 MAX7221 series LED driver ICs for multi-project use or bulk production. Compatible Models: Supports MAX7221 , MAX7221CNG, and MAX7221ENG variants, suitable for various LED display projects. DIP24 Inline Package: Standard DIP24 through-hole package for easy prototyping, breadboard testing, and PCB mounting. LED Display Driver: Designed for 7-segment displays and dot matrix LED modules, supporting up to 8 digits or 64 individual LEDs. Reduced I/O Usage: Drives multiple LEDs using a simple 3-wire serial interface, freeing up microcontroller pins. Built-in Decode and Multiplexing: Integrated BCD decoding, multiplex scanning, and segment current limiting to simplify circuit design. Color: As Shown Material: PCB Package Contents: 5*display driver chips 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.