Hacker News Reader

Wow, are there HFT firms doing this? How reliable is it?

No just HFTs use microwave. Most big DC players (e. g. Equinix) provide access to a MW antenna, as well a dedicated links to PBs and exchanges PoP.

You have outdated information. Mine is correct. If you are talking about the Auora-NJ path, then that's microwaves. I'm talking about Auora-Europe.