This is the power adapter for the same company's "Quadra Merger" product. Not too much can rewritten about a power adapter after all... but the product it provides power for does indeed merit praise in my eyes:
I perform all over Europe and the Middle East and fly often with a LOT of equipment. In my shows I control everything on stage with MIDI software I write and hardware I build myself, so it's imperative to have good and reliable apparatus.
This little gadget provides functionality that is difficult to find else where and in a super reliable way - I've been performing with it for years, under quite intensive conditions with lots of flights and hauling, and there was never the slightest issue with it.
An excellent product in a well needed niche.
Highly recommended