THIS IS WRONG!
This is the stripped-down version of the processor, the RK3188-T.
This has among other things to limit the clock frequency to 1.4 GHz.
This description of the product is equal to two times wrong.
The interested but no one from China and Amazon unfortunately is doing nothing against this false name.
So who gets along with the T model (and the 1.4GHz - which can not be the way also with ROOT raise, counterclockwise correct RK3188 which works to 1.8GHz without problems), then the drive is okay.
He is hot (with Irfrarot thermometer measured) during operation under load of 62 ° C besides,
but can be simply exemplary rooten (ADB drivers installed by Rockship and then open a shell by ADB. Entering "ID" immediately shows that the ADB User root is already :-)).
From the viewpoints of the stick is awesome ...
... But just not what it says!