Addonics AE4RCS25NSA 2.5" Disk Array 4SA - Black Bezel Attractive aluminum frame with vents for effective heat dissipation Interface: Support SAS, SATA-I, SATA-II Fit inside standard 5 1/4" drive bay or connect to system externally installed inside Zebra drive enclosure 4 removable drive drawers Plug & play and hot swappable