ITEM NAME:MAX7219 Red Dot Matrix Module MCU Control LED Display DIY w Cable T1Q5 MAX7219 Red Dot Matrix Module MCU Control LED Display DIY w Cable T1Q5 Can drive common cathode Dot matrix module, With input and output port, supports several module cascade MAX7219 is an integrating serial input / output common cathode display driver, it connects miniprocessor to 8-digit or 7-digit LED display, bar graph display and 64 red LED. Product Name : Red Dot Matrix Module Model : MAX7219 Working Voltage : DC 5V LED Number : 8 x 8/ 64 LED Light Color : Red Body Size : 50 x 32 x 13mm/2" x 1.2' x 0.5"(L*W*T) Cable Length : 20cm/7.8" Mounted Hole Center Distance : 43 x 27mm/1.7" x 1.1"(L*W) Material : Plastic, Electronic Part Package Content : 1 x Red Dot Matrix Module 1 x 5 Pin Cable Note:Light shooting 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 +/-1-3 cm..Model : MAX7219. Can drive common cathode Dot matrix module. 1 x Red Dot Matrix Module. LED Light Color : Red. 1 x 5 Pin Cable.