While the Chromecast’s small size is one of its biggest advantages, it also serves as a bit of a weakness. One such weakness is that the device can only use Wi-Fi to connect to the Internet, which isn’t good if you have a crappy router or if your Wi-Fi isn’t very good in the room your television is in. That’s why Google has released a new, affordable Ethernet adapter for the device which, as a testament to how much people need it, has already been sold out.