HL GA31N Slot Loading SATA Multi DVD RW DL Rewriter Burner Drive For Alienware M15x M17x M17-R1 M17-R2 M17-R3 Compatible with all laptops using a 12.7 mm SATA slot-loading optical drive Impresses with its compact size and the best DVD burning technology, works quietly and thus, will not disturb you while you are watching videos Lets you read and write DVDs and CDs with up to 6x recording speed. The HL GA31N delivers exceptional quality and performance with leading technology from the experts at Hitachi-Lg Net Dimensions: 128 mm x 12.5 mm x 129 mm, SATA interface, Slot loading, 12,7mm in height