Introducing the Icy Dock MB990SP-B Dual 2.5" to 3.5" SATA and IDE Solid State and Hard Disk Drive Converter. This dual bay drive bracket allows you to use two SATA or IDE SSD and HDD in an internal 3.5" drive bay in most standard cases. Since most cases are not set up to use 2.5" form factor, the MB990SP-B allows you to make a huge upgrade to your system with very little effort.