USB 2.0, Power supply: 5 V DC up to 1 A, Maximum Read Speeds: 24x: CD-R, CD-RW, CD-ROM, CD-DA; 8x: DVD-ROM, DVD+/-R, DVD+/-RW, M-Disc; 6x: DVD-RAM; 4x: DVD-Video, Maximum Write Speeds: 24x: CD-R, CD-RW; 8x: DVD+/-RW, DVD+/-R; 6x: DVD-RW, DVD+/-R DL; 5x: DVD-RAM; 4x: M-Disc, Supported disc diameter: 80 mm, 120 mm, Dual Layer Media Supported: Yes, Dimensions: 130 x 135 x 17 mm, Net weight: 0.29 kg