Schneider showcases their NetShelter CX as one of their portable server room in a box at Data Center World 2016. It's fully secure, fully flexible and on caster wheels for mobility. It has 90% noise reduction, allowing you to put it in an office with employees or other places where you don't have a dedicated IT space.
The one on display is 18U. It is fan-cooled so it works out the ambient air in the room, allowing you to save energy costs. It's fully secure; lockable with a key lock. It opens from the side or back for easy access to the servers. It comes with a standard PDU. It allows you to have access to a 300 to 400 Cat5 cabling with a simple removal of a screw. The rack rounds are completely flexible; they'll go from 34" down to 4".
This is a great solution for those areas where you don't have a dedicated IT space. It works out the ambient air in the room so you don't have to cool it any differently; it doesn't require any venting.
This is great for retail, healthcare mediclinics, small banks or offices, and supermarket branches of banks.