This is a holder for the Dyson Humdinger vacuum. No built-in mounting mechanism, I simply command-stripped it to the wall. It also doesn't engage the locking mechanism, and can only be used in up-right position.

I think its port size is unique among Dyson vacuums, but don't own the newer ones to know for sure. 

Attached is a triple-tool holder, a single-tool holder, as well as the cutout you'll need in case it's useful for anyone. The cutout has tolerance built in already, and the height is marginally longer than what's on the tool.