M.2_25 slots support PCIe 4.0 x4, with M.2_2 functioning independently from the processor, and M.2_35 managed by the Z790 chipset. These slots have no resource sharing or exclusion limitations but do not support SATA 6Gb/s devices.

On the I/O back panel, the motherboard features the Intel Wi-Fi 7 wireless network module with 2 x 2 antennas, supporting 2.4 / 5 / 6GHz frequency bands and integrated Bluetooth v5.4. Theoretical network transmission speed reaches 5.8Gbps. ASUS introduces the ASUS WiFi Q-Antenna directional antenna, emphasizing higher transmission rates and plug-and-play functionality without locking requirements. Other design and material aspects remain consistent.

The dual-network solution combines Wi-Fi 7 and Ethernet networks, utilizing the Intel I226-V controller. Notably, the primary 2-port USB Type-C is Thunderbolt 4, and ASUS does not employ third-party display signal input mixing. Lacking is a dedicated 20 Gbps USB Type C port on the backpanel IO.

Display outputs (HDMI) rely on the processor's internal display capabilities. USB configurations include six ports of USB 3.2 Gen 2 (red) and four ports of USB 3.2 Gen 1 (blue). The front case expansion port offers nine ports, including a USB 3.2 Gen 2 port with USB PD 3.0 & PPS, QC4+ 60W support.

The motherboard's audio, ROG SupremeFX 7.1, features the Realtek ALC4082 codec and an ESS Saber HiFi ES9218 digital-to-analogue converter. These specifications capture the key elements and visible differences of the ROG Maximus Z790 Dark Hero.