This is a dock for a Seek Thermal infrared camera. It's designed to protect the camera, and especially the delicate USB connection, while its attached to an extension cable. The camera simply drops in, and the USB connector slips through an opening in the bottom.
The cable can be attached to the dock using silicone or Sugru. Any bumps or pulls to the cable will be absorbed by the case, rather than by the USB connector.
The back is flat, which allows you to attach it to a phone/tablet case, handle, or monopod using velcro, adhesive, etc.