Asus PRIME X299-A Series - Motherboard Rear and Audio Connections

ASUS PRIME X299-A Series
2-13
Chapter 2
2.3 Motherboard rear and audio connections
2.3.1 Rear I/O connection
Rear panel connectors
1. USB BIOS Flashback button 6. USB 3.1 Gen 1 ports 56
2. USB 2.0 ports 1112 (bottom port
supports USB BIOS Flashback)
7. USB3.1Gen2Type-C™portEC1
3. Intel
®
LAN port (LAN1)* 8. Optical S/PDIF Out port
4. USB3.1Gen1ports78 9. Audio I/O ports**
5. USB3.1Gen2Type-AportsEA2
* and ** : Refer to the tables on the next page for LAN port LEDs and audio port definitions.
• USB3.1Gen1/Gen2devicescanonlybeusedasdatastorageonly.
• Westronglyrecommendthatyouconnectyourdevicestoportswithmatchingdata
transfer rate. Please connect your USB 3.1 Gen 1 devices to USB 3.1 Gen 1 ports and
your USB 3.1 Gen 2 devices to USB 3.1 Gen 2 ports for faster and better performance
for your devices.