PCI Express x16: 1 x PCI Express x16 slot, running at x4 (PCIEX4)
* The M.2 socket shares bandwidth with the PCIEX4 slot. When the M.2 socket is populated, the PCIEX4 slot will operate at up to x2 mode.
Audio Chipset: 1. Built-in Realtek ALC887 chip ®
2. Support High Definition Audio
3. Support 2/4/5 1/7.1 channels
To activate the 7.1 channel audio output, you must use the front panel audio output of the HD (High Definition, High Fax) audio module and select the multi-channel audio function through the audio software.
4. Support S/PDIF output
5. Support S/PDIF input
PCI Express x16: 1 x PCI Express x16 slot, running at x4 (PCIEX4) / * The PCIEX4 slot shares bandwidth with all PCI Express x1 slots. All 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 in BIOS Setup to x4.