This is one of the telescope side adapters of the Baader UFC System, in this case providing a 2" SCT Threaded facing. This is a suitable adapter for fastening a UFC System enhanced camera to any telescope which accepts 2" SCT threads, and is one of several options that anyone utilizing the UFC system has for telescope-side adapters. It fastens cleanly to the UFC Base's S70 thread on one side, and presents a 2" SCT thread on the other. It is equally compatible with UFC extensions as well.