Creative Labs Sound Blaster X-Fi Elite Pro. Audio quality: 24 bit, Audio output channels: 7.1, Line-out Signal-to-Noise Ratio (SNR): 116 dB. Host interface: PCI-E. Minimum RAM: 256 MB, Minimum processor: Intel Pentium III 1 GHz, AMD 1 GHz, Minimum hard disk space: 600 MB