I've used the Control Freak a lot for a variety of jobs. from DMX lighting control to synthesiser programming to DAW remote control. There's an abundance of resources on the Internet and while it's got a little learning curve behind it, once sussed, it'll become part of your standard MIDI arsenal.
If you’re familiar with MIDI or keen to learn, this box will end up being incredibly easy to set up and will make programming gear very easy.
The case is solid steel and it’s incredibly tough. This one's in great condition and has been very reliable over the years.
The user manual (and specifications) are available here: https://www.kentonuk.com/kmanualspdf/cfrkman.pdf
PRICE: £180.00 plus £20.00 p&p to UK mainland. Cost of shipping includes insurance.