The ThinkStation Hard Drive Bracket Kit is a mechanical bracket with SATA cable which could help you extend your ThinkStation C30/S30/D30 and E31 Tower systems with both 3.5" and 2.5" SATA/SAS Hard Drives. This bracket kit comes with a 5.25" to 2.5" HDD Conversion kit, 2.5" to 3.5" Conversion kit and SAS to SATA adapter so you have a much wider choice when it comes to finding a hard drive to install on the ODD Bay. This bracket kit includes a SATA cable and screws for easy installation to make sure you could install it easily. This bracket kit is fully qualified on ThinkStation C30/S30/D30 and E31 Tower systems, ensuring good compatibility and high reliability. This bracket kit is the best solution for you to extend the storage capability for your ThinkStation C/S/D30 and E31 Tower systems, and offers great value for money.