DE50, Carrier Only, SATA II, Black, RoHS The Data Express 50 is a reliable and versatile removable enclosure constructed of solid steel and plastic. This product was created specifically for 2.5 PATA or SATA 3Gb/s devices and is designed to fit into any 3.5 floppy or 5.25 peripheral bay, including CDROM slots. The DE 50 differs from other Data Express PATA and SATA models in that it supports 2.5 drives (rather than only 3.5 drives) and includes a model that supports USB host interfaces.