Usb sound card interface usb 20 supported system 51 max sample rate 96 khz line output 3 line in 1 outputs 1 x headphone 1 x tos link optical inputs 1 x microphone design external areas of use gaming home entertainment sound chip creative x fi bitrate 24 bit dolby format dolby digital dts format dts eax format eax 40 eax advanced hd 50 technologies cmss 3d thx sbx pro studio alchemy openal signal noise ratio 100 db supported operatin