Coolmax CD-510-U2 Gemini 3.5-Inch/5.25-Inch External Hard Drive Enclosure 5.25-inch external hard drive enclosure for Mac and PC Up to 480 Mbps transfer rate Compact design for easy portability; anti-shock design protects hard disk from damage Includes power adapter 80 x 195 x 350millimeters (HxWxL)