ASUS didn't compromise on the quality of the board, opting to use best in class I/Cs like Intel WG82579V PHY (Gigabit LAN), ASMedia ASM1042 (USB 3.0) and Realtek ALC898 (audio) for the input/outputs. There is also a MEMOK! watchdog which can be helpful during memory overclocking.
Here we see a mini-PCIe slot housing a Broadcom BCM943228 802.11a/g/b/n + Bluetooth 4.0 chipset with a 2×1 antennas (up to 300Mbps)
On to the DIGI+ VRM daughterboard itself, we observe a 8+2 phase design (CPU and iGPU), driven by a Intel VR12 compliant IR3538 PWM and passively cooled by a small heatsink.
We don't really agree with the choice of PCIe release connector, which can hard to reach during the removal of a long dual slot card.