This is a very common european system. It was released by numerous manufacturers such as Intel (Germany), Asaflex, Univox, Sportron, Interstate and others. The case can be black or white and the controllers can change.
It has big orange buttons and large game selection wheel. It was released in 1977 and uses the popular AY-3-8500 chip grom General Instruments offering the 4 classic pong games : Hockey, Tennis, Squash and Squash practice. Another version offered 6 games : 4 same pong games + 2 shooting games. It had the same design as the 4 games model.
This particular model was sold by Intel in Germany. It is unclear if this Intel company is the same as the world famous one... If someone could help us on this subject that would be great ! We personaly think it is a different one, based in germany...
The fun fact is that the controllers are attached to the console by "scratches" !