LaCie 301906U. DVD-R write speed: 16 x, DVD+R write speed: 16 x, DVD-RW write speed: 8 x. DVD-RW read speed: 8 x, DVD+RW read speed: 8 x, DVD-R Dual Layer read speed: 8 x. DVD-ROM transfer rate (sustained mode): 1.38 MB/s, BD-ROM transfer rate (sustained mode): 4.5 MB/s. Interface: USB 2.0. Compatible operating systems: Windows XP/Vista/7 Mac X 10.5/10.6, Bundled software: Roxio Easy Media Creator 10 Toast 10 Titanium PowerDVD BD