Hartmann Neuron VS NUKE VST controller dongle. Super rare used controller / dongle for the software version of the Hartmann Neuron megasynth from the naughties.
Although it was famously buggy the synth was a unicorn dream synth for sound creators with a rather large wodge of cash and an even bigger amount of patience. This was released as a dongle controller and cheaper version of the synth using a computer to supply the sound generation power and this controller to manipulate the parameters. Unfortunately it was also rather buggy, but luckily it had a lifeline from some great people involved with the neuron who didn't want the project to die and they rewrote the software which can be downloaded and used on a mac with this as the controller for it. It won't be an easy task to set yourself up with a computer version of a Neuron but if you are looking at this then you are probably aware of the quest in front of you and are a battle hardened fellow sound generating audionaut prepared to go where others fear to tread on the path to sonic nirvana.
I doff my cap to you and wish you luck should you choose to take up this mighty challenge, the road will be long and fraught with danger and many a man has perished trying to complete the quest but the prize at the end will be more than worth the hardship. No box, software or manual but I will endeavor to include as much info I can.