7.1 channel output for home theater surround sound Optical output port. CMI8768 Chipset. Supports 96K/16-bit play; 48K/16-bit record. Complete Internet Entertainment (Audio Files, MP3, Games etc) & DVD Player Solution. Provides audio fidelity that rivals movie theatres with 6-CH digital sound. Compliant with 3D sound DS3D, A3D, EAX 1.0, EAX 2.0 Advanced Mpc-3 compliant input and output mixer Enhanced stereo full duplex operation Dull type-F DMA support Delta-sigma data converters Programmable power management Hardware master volume control Line-in microphone and line-out jacks 15-pin standard game/midi port Ports: 1 x Line-in; 1 x Mic-in; 1 x F-out; 1x R-Out; 1 x Cen-out,1 x Back-out,1 x Digital-out Support: Windows 95 / 98 / 2000 / NT / ME / XP / VISTA / Windows7