User's Manual

ROG MAXIMUS XII FORMULA
2-17
Chapter 2
2.3 Motherboard rear and audio connections
2.3.1 Rear I/O connection
* and ** : Refer to the tables on the next page for LAN port LEDs, and audio port definitions.
Rear panel connectors
1.
Clear CMOS button (CLR_CMOS). Press this button to clear the BIOS setup
information only when the systems hangs due to overclocking.
2. USB 3.2 Gen 1 Type-A ports E1, E2, E3, and E4
3. PS/2 keyboard/mouse combo port
4. Marvell
®
AQtion AQC107 10Gb Ethernet port*
5. Intel
®
I225-V Ethernet port
6. BIOS FlashBack™ button
7. USB 3.2 Gen 1 Type-A ports E5 and E6
8. USB 3.2 Gen 2 Type-A port 3
9. USB 3.2 Gen 2 Type-C
®
port C4
10. USB 3.2 Gen 2 Type-A ports 5 and 6
11. Wi-Fi 6 (802.11 a/b/g/n/ac/ax), Bluetooth V5.1
12. Optical S/PDIF OUT port
13. Gold-plated audio jacks**
• We strongly recommend that you connect your devices to ports with matching
data transfer rate. Please connect your USB 3.2 Gen 1 devices to USB 3.2 Gen 1
ports and your USB 3.2 Gen 2 devices to USB 3.2 Gen 2 ports for faster and better
performance for your devices.
• Due to the design of the Intel chipset, all USB devices connected to the USB 3.2 Gen
1 ports are controlled by the xHCI controller. Some legacy USB devices must update
their firmware for better compatibility.