Asus ROG Xonar Phoebus Solo 118dB Signal-to-noise ratio (SNR) ensures audio purity. Integrated 600ohm headphone amplifier pumps details Genre-optimized game audio profiles for precise immersion Genre-optimized game audio profiles for precise immersion Supported Operating Systems: Windows 8 32bit/64bit,Windows 7 32bit/64bit, Windows XP 32bit/64bit