USB 3.0 to 7+6 13pin Slimline Sata Adapter Cable for Laptop Cd DVD Rom Optical Drive Interface:USB3.0 to 7+6 13pin,Connect internal SATA optical drive externally No external power required, No driver is needed in XP/windows 7 and Mac OSX or more hight,Boot from external drive capability Support:SATA DVD drive from laptops and 2nd hard drive caddy Note: it doesn't fit the optical drive from desktop PC