Unitate optica externa Asus, DVD+/-RW, 8x, SDRW-S1 LITE, USB 2.0, Xonar7.1 surround sound card, 600 ohm headphone AMP, Audio Processor: C-Media6631A, Cirrus Logic CS4398, Operational Amplifier: 2 x NJM5532 ,Connectivity: 5x 3.5mm Jack/ Digital Output: 1x S/PDIF out.