Mediasonic SSD Mounting Bracket for 2.5" to 3.5"

This is an adaptor for the Mediasonic 4 bay and 8 bay hard drive enclosures. I myself tested this on my 4 bay HF7-SU31C enclosure. Works well and its an easy push in and pull out adaptor. It fits snug against the metal backplate at the door. This adaptor is dimensioned so all the user has to do is slide the adaptor in like a normal 3.5" HDD. It lines up exactly with the SATA port at the back. 

Do be careful, you can damage your drive if you come in at an angle. These enclosures don't have rails from stopping the drive from going up, so when sliding in the adaptor. Slide in with care. You can rest the adaptor on the metal plate that holds the drives up and it will slide perfectly into the SATA port. 

This is the original Mediasonic adaptor if you wish to buy yourself one instead: 

https://mediasonicstore.com/products/mediasonic-ssd-mounting-bracket-for-2-5-inch-to-3-5-inch-hard-drive-hdb-g1