Storage Options SOX6XBD-SLV. BD-RE write speed: 2 x, BD-R write speed: 6 x, DVD+R write speed: 4 x. DVD-ROM read speed: 8 x, CD-ROM read speed: 24 x, BD-ROM read speed: 6 x. Drive device, buffer size: 2 MB, Interface: USB 2.0. Dimensions (WxDxH): 143 x 139 x 20 mm, Weight: 0.43 g. Compatible operating systems: Windows XP / Vista / 7