Creative Labs X-Fi Titanium PCI express. Audio quality: 24 bit, Audio output channels: 7.1, Line-out Signal-to-Noise Ratio (SNR): 109 dB. Host interface: PCI-E. Bundled software: Creative Software Suite. Minimum RAM: 256 MB, Minimum processor: Intel Pentium 4, AMD Athlon 1.6 GHz, Minimum hard disk space: 600 MB