Bax,
Just purchased the TTx650 and have a question about the firmware update. This requires TACJ 2651 usb update. This is not listed on Tower's site. I have the Futaba 10J usb udate module. Will this work witht he Tactic 650?
Thanks,
Sam

There isn't an update for the TTX650. The interface listed in the instructions has never been released, and the stock number is not present in the system. If/when there is a software update, then the interface will be produced and released.