The item is a professional and practical USB to / 2.5 3.5 Hard disk converter adapter set, which can turn any / drive into a convenient external drive, and be used as a bridge to connect , 2.5" hard disk, 3.5 " hard disk, CD -ROM, DVD-ROM, CD-RW, computer with the interface of USB 2.0. The USB interface provides for easy installation with its design. Features - - Material: durable hard plastic, metal and copper wire. - and USB to / 2.5 3.5 Hard Disk Converter Adapter Cable Set - Convenient connection of hard drives 3.5 "and 2.5" without any accessories, CD-ROM, CD burner, DVD Combos, DVD burner (DVD + /-RW u.DVD-RAM) via USB . port on your desktop or notebook PC. - No more screw. - No cable too frequent unplugging and . - No on hard drive capacity. - Note: power supply adapter is not included. Specifications - Input: 90V-264V. - Output: 5V 12V and double channels - Support installation of , 2.5 "hard disk, 3.5 " hard disk, CD -ROM, DVD-ROM, CD-RW, . - Three connectors : a 44-pin connector for internal 2.5 -inch , an 40-pin connector for internal CDRW, DVDRW, CD Rom, DVD Rom, 3.5 inch Hard disk, etc . One connector for devices. - USB 2.0 interface, with the maximum data transfer of 480Mb/s (52X CD-ROW) - Compatibility: 98 /98 /2000 / Package list: 1 * USB to / Adapter Cable 1 * Cable 1 * 4-pin Power Cable