Canon eos dedicated ttl distributors
Functions as a central distribution hub for eos ttl off camera operation and will accept up to four connecting cords one to camera three to flashes to be used with ttl hot shoe adapter 3 or off camera shoe adapter oa 2 and eos connecting cord 60 or 300 for off camera ttl use note provides standard ttl or manual flash control but not ttl or ttl ii not compatible with eos digital slr cameras