1. Driver Chip: MAX7219
2. Input Voltage: 3.7 to 5.3 V
3. Input Current: 320 mA
4. 8 x 8 dot matrix Display
5. PCB Dimensions: 30 x 30 x 1 mm

Features: 

1. Requires only 3 communication wires of MCU
2. Cascading multiple Matrix LED Module is very easy
3. Size of the display is very compact
4. The PCB features M3 holes for mounting.

Packages Includes: 

1 x MAX7219 dot matrix module microcontroller module DIY KIT