Welcome, you are looking at a really cool piece.
This is the Behringer Model D Synthesizer Module.
This Model D is an homage to the early 70s synths.
Monophonic, with 3 VCOs, LFO, and Ladder Filter.
It even features the eurorack aesthetic- very cool.
This Behringer is in very good overall condition as you can see in pictures- a ding on the wood side and typical marks from normal use.
Tested and works as it should.
Includes aftermarket adapter and original manual.
This is your chance to add a good module to your rig.
Don't pass this by!