Online LED Display Control Card 1, 5V~24V input 2, ... each port can connect 512/1024 lights.4, Could play the content in SD card, it can be cascaded connected when ... T-8000 port controller, load 512 lights each port, the playback speed can be up to 30 frames/sec; if ... connection, only the buttons on the first controller could work, we use the first controller to play files and adjust play speed. Buttons ...