About the ProductThe Creative Sound Blaster Audigy 2 NX can function as an external PC/notebook sound card or a standalone digital entertainment hub that connects your Audio/Video devices to your stereo systems. It can output 24-bits performance for ADC and DAC with 102dB SNR clarity. It has a frequency response of 10Hz to 23kHz. It connects to PC through the usb interface. It has a remote control for easy access of various AV devices. It also features Optical and MIDI In/Out, SPDIF-In, Line-In and Mic-In ports.