Hello Cornstick
Thank you for your interest in this concept product. It is still being worked on, but we do have a very similar product that is out now that supports a single 2.5" drive and 3.5" drive in a single 5.25" bay, MB795SP-B (https://www.icydock.com/goods.php?id=283). Since the MB795SP-B has been released, a release of the CP047 might be soon, as it is a very similar design as the MB795SP-B.
Let us know if you have any questions or thoughts on our concept products.