Pinnacle ProFire Lightbridge. Frequency response: 20 - 40000 Hz, Audio quality: 24 bit, Sampling rates: 96 kHz. Headphones maximum output: -3 dBV, Headphones working range: 75 Ом, Headphones Signal-to-noise Ratio: -108 dB. Interface: FireWire. Colour of product: Silver. Compatible operating systems: Microsoft Windows XP SP2, Minimum processor: Intel Pentium IV 1.8 GHz, Minimum RAM: 512 MB