There's some kind of garage door controller in there. I'm not sure what it is/how it works, but I suspect it's linked to the PowerFlash in some way.
I'm pretty excited about the quantity of non-soft start modules including one 3-way. I can't complain, but I wish the second 3-way was an older one as well since I really want to swap them in to the garage.
There's also 2 mini-controllers and some kind of IR receiver/mini-controller. That PR511 is also brand new (insulation stubs on the wires even). Not sure what else I NEED, but a lot there that's either backups or an option to play with.
I thought the last box I picked up for $25 was pretty good but this one for free is 10x better. Can't complain for either though.