Specifications Interface - Serial ATA Interface (Rev 2.6) Data Transfer Mode - 1.5Gb/sec Data Buffer - 4MB. Software - Arcsoft Totalmedia Extreme 2 Mounting Orientation - Horizontal or vertical. Dimensions (W x H x D) - 148mm x 42.3mm x 180mm Net Weight - 740g Write Speeds BD-R - 15x BD-R DL - 14x BD-RE - 2x BD-RE DL - 2x DVD-R - 16x DVD-R DL - 8x DVD-RW - 6x DVD+R - 16x DVD+R DL - 8x DVD+RW - 8x DVD-RAM - 5x CD-R - 40x CD-RW - 24x Read Speeds BD-ROM - 12x BD-ROM DL - 18x BD-R/RE - 10x BD-R/RE DL - 6x BD-ROM - 12x BD-ROM DL 8x BD-R - 12x BD-RE - 10x DVD-ROM - 16x DVD-R/+R - 16x DVD-R DL / +R DL - 12x DVD-RW / +RW - 12x DVD-RAM - 5x DVD-RW - 12x DVD+RW - 12x CD-ROM - 40x CD-R - 40x CD-RW - 24x