Between the CPU socket and the first PCI-E 3.0 X16 slot we do have a Broadcom ExpressLane PLX PEX 8747 that is able to take x16 lanes from the CPU and outputs no less than x32 PCI-E 3.0 lanes; this chip does have a heatsink on its own, since it can get quite hot during normal use:

Another system fan header (PWM type) can be seen between the I/O shield and the first PCI-E x16 slot:

The 10Gbit AQtion AQC107 network controller is also covered by a dedicated aluminum heatsink:

The audio interface is provided by the Realtek ALC1220 CODEC:

The interface can be also disabled by using the dedicated jumper:

Near the CMOS battery, we do have a pre-installed buzzer that will send us signals during POST, but also inform us when devices are plugged inside the ports (unlike other consumer motherboard models):

Nearby, we can spot an IDR 6V41642B clock generator that allows BCLK overclock:

The board does feature four PCI-E 3.0 x16 slots (with one x1 slot in the middle) that can operate at x16/x0/x16/x0 or x8/x8/x8/x8, a configuration useful in many situations. The board does also support CrossFireX:

Plenty of interfaces are also available in the lower PCB area: