Hi, I'm from Marseille, the maker of mCable. To address your resolution question, you don't have to mess around with the system resolutions to use the cable. However, if you want the best performance, set your content device to output at 720p and it will upscale to 1080p and provide superior enhancement of your image vs. having 1080p content as the source output. If you have a 4K TV, 1080p content will upscale to near-native 4K.
To address the prior question of the 3 generations of mCables, we recommend purchasing the most recent mCable Gaming or Cinema editions. We are very proud of our legacy generations; the difference comes from the updated computer inside the cable, which addresses the on-going changes and upgrades the game and console manufacturers make. Like an iPhone, the older versions are great even though they don't support the latest offerings.
As for the difference between our mCable Gaming & Cinema Editions, the Gaming also upscales and enhances movie/TV/streaming content, and the Cinema will do the same to games. However, each has their own special requirements and algorithms in the computer designed to maximize each separate and unique experience. For instance, our advanced anti-aliasing is specially designed to meet the needs of gaming content, which has unique needs in having realistic edges and elimination of shimmering effects.
Finally, we are constantly looking at new product development and are working on bringing some exciting new products to the market in 2019. We love what we do and want to make sure you fully enjoy your mCable - let me know if you have additional questions.