Compatible with SATA I/II specification Stylish front panel design with excellent ventilation Fit to 5.25 inches standard bay of PC Case One bay for 3.5” SATA I/II Hard Drive No driver or software needed Tool Free Hard Disk installation With security Key Lock LED signal lights, power real-time display and hard disk read and write state Dimension: 184 x 149 x 42 mm Supports windows 2003/2008/XP/ Vista/7