Drive Specifications: 2X BD-ROM reading 5X DVD-RAM Writing 8X DVD-R Writing 2X DVD-R DL Writing 4X DVD-RW Writing 8X DVD+R Writing 2.4X DVD+R DL Writing 4X DVD+RW Writing 8X CD-R Writing 8X CD-RW Writing 24xCD Reading Speed 8xDVD Reading Speed 1.6XBD Reading Speed Condition: BrandNew Plug & play ! System Requirement : Windows 98SE/2000/ME/XP/Vista/ Windows 7, not for Mac Buffer Size : (137mm), Height : 0.7 in (18mm) Note: If you connect with your Desktop Computers ,you need to connect it with the computer"s mortherboard .