Plextor PX-LB950UE. BD-RE write speed: 2 x, BD-R write speed: 12 x, DVD+R write speed: 8 x. DVD+R read speed: 8 x, DVD-R read speed: 8 x, DVD-R Dual Layer read speed: 8 x. DVD drive average random access time: 200 ms, CD-ROM drive average random access time: 150 ms, BD-ROM average random access time: 250 ms. Drive device, buffer size: 8 MB, Interface: USB 3.0 & eSATA, Mounting: Horizontal. Dimensions (WxDxH): 163 x 224.7 x 51.5 mm, Weight: 1.2 kg