As an OEM board, the BIOS is often "locked." It may not support high-end overclocking or specific high-performance RAM profiles (XMP).
1x HDMI, 1x VGA, 2x USB 3.0, 4x USB 2.0, 1x RJ45 Gigabit LAN, 3x Audio jacks, and legacy PS/2 ports for mouse and keyboard. Acer Ipimb-ar Rev 1.02a Manual