It's great for racking Pis (e.g. my setup that I just posted about last week: https://www.youtube.com/watch?v=LcuNc4jz-iU https://www.youtube.com/watch?v=LcuNc4

It's great for racking Pis (e.g. my setup that I just posted about last week: https://www.youtube.com/watch?v=LcuNc4jz-iU https://www.youtube.com/watch?v=LcuNc4jz-iU), and also when you want to use a Pi in some location where running a power line would be cost prohibitive but running an Ethernet cable with PoE would be okay (for many, you have to have an electrician do the former, and likely get a permit).