In general, like any Apple technology, it works as expected and without problems, well, except for Windows, when you connect a thunderbolt to FireWire adapter to this adapter, also from Apple, the computer just freezes and squeezes into a blue screen. The solution is to download the latest firewood for thunderbolt directly from the Intel website, since Windows automatically installs older versions of the drivers. Well, to the topic of dimensions - to be honest, these are all nit-picking, since in this case the solution is quite miniature, and it is almost impossible to reduce without losing the quality of the connections at this stage of technology development.