SONY DRIVE!!!! Data transfer speed: 100 MB/s (UDMA Mode 5). SMART-X: Smart Monitoring and Adjusting Read-speed Technology for Extraction. SATA connection. CD: Read: Max. 48X. Digital Audio Extraction (DAE): Max. 48X. Write CD-R: Max. 48X. Write CD-RW: Max. 32X. DVD: Read (single layer/dual or double layer: Max. 16X / 8X. Hardware Interface CD-R Brand Sony Item Dimensions LxWxH 7.4 x 6.1 x 1.9 inches FREE SHIPPING WITHIN THAILAND