MAX7219 dot matrix LED module, capable of displaying 8x32 dots. - Model: MAX7219 Dot Matrix LED Module - SKU: SKU-20-111-078 - Connection Terminals: 4-pin connector - Size: 8x32 dots - Function: LED display module This item has been stored at home. I am not familiar with this product, so please ask any questions in the comments. I can add photos, etc. If you would like to purchase multiple items of the same product, please comment. Returns are not accepted after purchase. Please purchase only if you understand the above.