Very rare NOS (Never Used) Board F-2611 for Amplifier model AU7900!
The board is in great condition, never installed, but it is untested, so what you see you will get it.
It has some scratches but nothing damaged. All 5 pieces of switches are tested, and they are in the great condition! Just for yours info, used switches like those are selling on ebay from 15 to 25 US$ per pice, here you have NOS five pieces, so...

If you already have Amplifier model AU7900, this very important board is the last chance to get one as spare board.
That board is not plug-and-play, installation must be done by a qualified technician only!!!!