The device on the Raspi could easily not be able to function: plug adapter into the designated USB ports, network access set on the operating system and already has a small unit with up to 150 Mbit / s (gross) inserted in the network and has wireless Internet access.
Thus, it is me now possible wireless access to my server and to stream movies and series. This works - depending on proximity to the wireless access point - usually without jerking and intermediate buffers.
Purpose clearly met = 5 stars!