The X-Raider has a 7.1 Surround Sound System with extraordinary Magic voice, Microphone echo and key-shifting as well as NE5532A OPAMP with swappable OPAMP sockets for 7.1 channel. It has SPDIF (Optical) Input & Output Support and Internal Digital output via 2-pin connector, there is also HD Front Panel Audio Support. It comes with Xear3D Audio Engine, EAX1.0/2.0, A3D and DirectSound. Features & Specifications summary: C-Media CMI 8768 Audio Processor. 8(7.1) Surround Sound System. PCI Rev. 2.2 compliant with bus mastering modes. TI NE5532P High-performance Operational Amplifiers (OPAMPs) & swappable OPAMP Sockets for All Channels. Unique Karaoke Functionality (Mic Echo, Key-Shifting and Vocal Cancellation). Two-Pin Digital Output Port. Front Panel connections via the Intel HD 10-1 pin FP_Audio. Xear3D Surround (EAX 1.0/2.0, A3D and Direct3D). Supports 96K/24bit Digital playback. 7.1 Virtual Speaker SHIFTER. I/O Connectors: Line Input - 3.5mm phone jack. Microphone Input - 3.5mm phone jack. Speakers Output - 4 x 1/8? stereo 3.5mm phone jacks (Front/Rear/Center-SW/Side). 2 SPDIF Input/Output (TOS Link), Maximum 24bit/96kHz. CD-In, Aux-In and signal input converter. Note: PCI slot required.