Description : PCI express x1 5.1 sound card Full height bracket attached with Low profile bracket in the box Specifications Compliant with AC’97 rev. 2.3 and PCIe 1.0a specifications Chipset: VIA VT1723 + 1617A Supports 24-bit/96kHz digital outputs and 20-bit/48kHz analog connections Supports EAX 2.0, A3D 1.0, and Microsoft DirectSound 3D + Full-duplex 6CH DAC/2CH ADC Digital out: S/PDIF optical (Toslink) Spare low profile bracket included for low profile systems Dedicated Headphone out (3.5mm jack) 18bits / 48Khz Max headphone Jack output (into 32ohm load): 60mW 20-bit High Quality DAC/ ADC THD (Rated @ 1Khz): 0.006% Signal to Noise Ratio: -90dB Dynamic Range: 89.8dB Stereo Crosstalk: -82.9dB Environmental Conditions: Certifications/Standards: FCC, CE, RoHS Country of origin: China Requirements PCI Express enable system with an available PCIe slot Windows 7 (32-/64-bit) / Vista (32 -/64-bit) / XP (32-/64-bit) / Server 2003 & 2008 (32-/64-bit) 512MB or more system memory