Given that the Trekstor keyboard which they sell as a spare part for the Duo W2 (I think it is – too lazy to check now, but you obviously know the one) fits the Cube tablet perfectly (see my post on the thread regarding the keyboard), then I guess the Trekstor Stylus will also work fine. If you’re in Germany then you can always order one and and send it back if it doesn’t work – you only lose the postage. Would have tried it myself by now, but don’t have any use for a stylus personally. The keyboard on the other hand I use a lot.