After a little overlook on forums about the Efika, I've noted two things :

- ppl regret the only 2 USB ports, so I'm thinking about adding at least 4 USB ports (hub) on the rear of the top module, plus 1 on the front, for USB keys (I'm searching for a way to integrate it without breaking the design)

- I don't know the way to use to connect the DVD drive, by USB or by using a connector to connect it before the 2"1/2 HDD ... I'm waiting for the MoBo to see what would be the best solution. But in order to keep the possibility to remove the "top part" easily, I think I must use an external USB wire ...

So wait and see ^^