Lite-On IHBS 112. BD-R write speed: 12 x, BD-R Dual Layer write speed: 8 x. BD-R read speed: 8 x, BD-RE read speed: 8 x. DVD drive average random access time: 150 ms, CD-ROM drive average random access time: 150 ms, BD-ROM average random access time: 250 ms. Interface: SATA. Dimensions (WxDxH): 146 x 41.3 x 170 mm, Weight: 650 g