This cable is very useful to transfer data from one computer to another, backup data to CD/DVD or install operating system or software if your computer does not have any optical drive. It comes complete with power adaptor, SATA data/power cable and can be used as follows: Connect laptop 2.5 inch harddisk (IDE/SATA) to any computer via USB without power adaptor. 2.Connect desktop harddisk (IDE/SATA) to any computer via USB with power adaptor. 3.Connect CD-ROM/CD-RW/DVD-ROM/DVD-RW (IDE/SATA) to any computer with power adaptor. Total Price Rs. CALL/-