Yes, a lot of servers have this. My point was more along the idea that as long as the FBI has the drives, they don't need anything else - so they should return everything except the original drives.
You can set up a limited number of users, like 16, and cannot store or access random data (i.e. you cannot use it like a 1GB USB drive). Of course, you could image that data, as there are tools under Linux etc. that let you read the IPMI / LOM / iLO information.
The module's capabilities are not all that different from OpenWRT; they run Linux, have a network connection, provide a web UI including a 'VNC' server for the VGA console, run (IIRC) net-snmp ...
If I wanted to obscure my intentions, I definitely would leverage such non-obvious embedded systems.