As commented on many times this is not a Hyperloop. It is a tunnel with a possibility more modern Subway car in it.
However this is still exciting. The Boring company may do for underground tunnels what SpaceX did for Orbital Access, radically reduce the cost...
I would suggest a used Cisco.
https://www.networktigers.com/products/cisco-ws-c4900m-catalyst-4900m-switch
https://www.networktigers.com/products/cisco-ws-x4908-10g-rj45-catalyst-4900m-8-port-10gbase-t-rj-45-half-card
Contact the vendor to ensure it comes with a Power Supply. I'm using this...