Instead of a GPIO port, the BrightSign HD220 has networking capabilities where you can have the players play material in sync and update material over the network.
– Handles Full HD quality in 1080p.
– Offers multi-zone and full-screen playback capabilities. Why not post images, videos, live text and RSS feeds.
– Support the ability to update materials and projects via networks.
– Together with multiple HD220s, you can create your own video wall with perfect sync.
– Schedule different materials to be played at different times.