GT50N 8X DL DVD RW CD Burner Super Multi DVD 12.7mm Slim Internal SATA Drive for Lenovo G550 G470 G480 G450 G475 G485 Features Interface: SATA Model number: HL GT50N Writing Speed: 6x DVD+R DL (Double Layer) 4x DVD-R DL (Dual) 5x DVD-RAM 8x DVD+R 8x DVD-R 24x CD-R 8x DVD+RW 6x DVD-RW 24x CD-RW Reading Speed: 5x DVD-RAM 8x DVD+R 8x DVD-R 8x DVD-ROM 24x CD-R: 24x CD-ROM 24x CD-RW 6x DVD-RW 8x DVD+RW Data Buffer Memory: 2 MB Supported Formats: DVD+R/RW DVD-R/RW CD-Audio CD-DA CD-ROM CD-ROM XA CD-R CD-RW CD-I Photo-CD Video CD CD Extra CD-G CD Text DVD-ROM DVD-RAM DVD-Video