PCI Express x16: 1 x PCI Express x16 slot, running at x4 (PCIEX4)
* The PCIEX4 slot shares bandwidth with the PCI Express x1 slots. The PCI Express x1 slots will become unavailable when a PCIe x4 expansion card is installed.
* When installing a x8 or above card in the PCIEX4 slot, make sure to set PCIE Slot Configuration (PCH) in BIOS Setup to x4.
Audio Chipset: Realtek "ALC892 Octave high fidelity Audio Encoder
Absolute Pitch 192kHz/24bit True Blu-ray Distortionless Audio
Blu-ray Disc Audio Content Protection
Supports DTS UltraPCll surround audio
Support DTS Connect
Support audio interface detection, Multi-Streaming technology, and custom front panel audio jack function. The rear panel has a fiber S/PDIF digital output connection port