A few years back when we didn't have 3/4TB drives and we were all struggling to make due with 320/500GB ones there was one thing pretty much every single person i know in the IT industry wanted and that was one or more hot-swap 5.25" storage adapters for 3.5" drives. That way everyone could insert a 3.5" drive, take a backup (or share files with friends), remove it and insert another one in just a few seconds (back then docking stations didn't really exist). Now things have changed and so to most people even a single 4TB drive is way too much, however we are not most people and the same can be said about professionals and enthusiasts around the globe. Unfortunately feature-rich and high quality 5.25" hot-swap storage adapters that can hold over three 3.5" drives are extremely hard to come by in the market today and if you are to sacrifice most if not all of your 5.25" drive bays you want to make the most out of it. iStarUSA designs and manufactures industrial grade products for the most demanding of users and lucky for us they also make some of the best 5.25" drive cages for both SATA II/III and SAS I/II drives like the BPN-DE340SS.