Performance  Cache 2MB  BD-ROM Access Time 180 ms. Data Transfer Rate BD-R (SL/DL) 2x, 4x CLV, 6x, 8x, 10x PCAV / 2x, 4x CLV, 6x, 8x PCAV- BD-R (SL) 2x, 4x CLV, 6x PCAV- BD-RE (SL/DL) 2x CLV/ 2x CLV -Write Speed - BD-R 10X  BD-RE 2X  DVD+R 16X  DVD+RW 8X  DVD-R 16X  DVD-RW 6X  CD-R 48X  CD-RW 24X  DVD+R DL 2.4x  4x CLV 8x PCAV  DVD-R DL 8X  DVD-RAM 12X  Read Speed  BD-ROM 8X  DVD-ROM 16X  CD-ROM 48X  Physical Spec  LightScribe Support Yes  Form Factor 5.25"  Panel Color Black  Configuration  Load Type Tray  Interface SATA