It's a bitmine.ch Avalon clone ~ running a quick search, looks like they are configured by default to work via Ethernet but it can be changed to Wifi in the web GUI.
Source:
https://bitcointalk.org/index.php?topic=215431.msg3160076#msg3160076After an initial panic of not being able to log in or configure the Avalons, I realized that they had been configured to mine over ethernet LAN cable instead of WiFi, so I reconfigured back to working over WiFi.