LG WH16NS40 Super Multi Blue Internal SATA 16x Blu-ray Disc Rewriter Drive type Internal 16X Blu-ray Disc Rewriter, M-DISC Support. Access time : BD-ROM is 180 ms typ Interface: SATA (SATA 1.1a), Buffer Memory: 4 MB Operating System: Windows 7/ Vista/ XP Blu-Ray Disc, DVD and CD Family Read/Write Compatible, Write and Read Quad, Triple, Double Layer BD-R Discs Sustained Rate: BD-ROM: 575.44 Mb/s (16x) max, DVD-ROM: 22.16 Mb/s (16x) max, CD-ROM: 7,200 Kb/s (48x) max