2 but not three times

After the first purchase, the first transformer grid connection. I email provider, very commercial, send me a complete article. After one week of use, rebelote, transformer HS.
The socket is commonly used by other devices, without worry.

Configuration; On Macbook Pro, with 1 mouse, 1 keyboard, 1 USB key 2'5 and 2 external HDD.

The advantage is that when the transformer grid, the keyboard and mouse are still functional release ... So still the 2 harbors mac. But hey, that's not the objective.
After, design, ergonomics, ok, nothing to say. The fixing scratches could have been very practical ... if the material had market!