No one is going to choose this over an Altra server. If you need a server, you get a server, you don't go for a hacked together RPi solution. For the other gro

No one is going to choose this over an Altra server. If you need a server, you get a server, you don't go for a hacked together RPi solution. For the other group -- I'm in that group. I have half a dozen RPis hooked together with various bits of PoE and duct tape. Most of them are doing something, but aren't very mission critical (unless you count streaming music around my house as mission critical!). As much as I like the RPi for various projects, I don't think I could rationalize using something like this for work. I'd like to have the networking built in, but realistically, I suspect it would be an easier sell to have a passthru backplane where you still don't have the physical RJ45 ports on the blade, but on the backplane. But, you don't provide any switching on the backplane... it would be a 1:1 blade:port setup on the chassis. You could always add a switching backplane if you needed. For me, the backplane idea is primarily about power. The PoE numbers suggested in the power don't scream efficiency. Really, the chassis is still going to need it's own power supply anyway (for fans), so why not just expand that out to supply the RPis from one power supply?