Razer Barracuda™ AC-1 Gaming Audio Card. Audio quality: 24 bit, Audio output channels: 7.1, Line-out Signal-to-Noise Ratio (SNR): 117 dB. Host interface: PCI. Minimum RAM: 128 MB, Minimum processor: Pentium II 350MHz, AMD K6 450 MHz or Higher, Minimum hard disk space: 55 MB