replaced by SDOCKU33EF Dock your 2.5in or 3.5in SATA Hard Drive over USB 3.0 or eSATA with the added benefit of a built-in Cooling Fan. Compatible with USB and eSATA enabled computer systems such as Dell Latitude E6430 and 2.5in or 3.5in SATA solidstate Drives and hard drives. Save time while backing up data to an external drive for archiving. Easily transfer data from one hard drive to another.