Interface USB2.0 Data Transfer Rate (maximum) DVD+R DVD-R DVD+R DL DVD-R DL DVD+RW DVD-RW DVD-ROM CD-R CD-RW CD-ROM 8X 8X 6X 6X 8X 6X 8X 24X 24X 24X Random Access Time Typical 130 ms Max 185 ms MTBF(Life) 60000POH Environment Temperature Operating 50 C to 350C; Relative Humidity 10% to 80% (no-condensation) Non-Operating -400C to 650 C; Relative Humidity: 10% to 90% (no-condensation) Compatibility Windows I Linux I MAC OS Compatible System Requirements 1GHz or faster CPU recommended. Windows 8 requires SSE2，PAE and NX-bit support. 1GB RAM and 16GB free disc space required under 32-bit OS ( 2GB RAM and 20GB space under 64-bit OS) for creating DVD disc. Available USB port required Physical Dimensions (LxWxH) 139 x 139.3 x 13.5 mm 5.47 x 5.48 x 0.53 inch Weight (Max.) 220g