User Guide

ASUS X99-E-10G WS
2-13
Chapter 2
2.3 Motherboard rear and audio connections
2.3.1 Rear I/O connection
Rear panel connectors
1.
USB 3.1 Type-A port EA1 (Supports
USB 3.1 Boost)
5. USB 3.1 Type-C port EC2 (Supports
USB 3.1 Boost)
2.
Intel
®
10G LAN port (LAN2)* 6. Optical S/PDIF Out port
3.
Intel
®
10G LAN port (LAN1)* 7. Audio I/O ports**
4.
USB 3.0 ports 1234 (Supports USB
3.0 Boost)
* and **: Refer to the tables on the next page for the LAN port LEDs and audio port definitions.
• ThepluggedUSB3.0devicemayrunonxHCImodeorEHCImode,dependingonthe
operating system’s setting.
• USB3.0devicescanonlybeusedasdatastorageonly.
• WestronglyrecommendthatyouconnectUSB3.0devicestoUSB3.0portsforfaster
and better performance for your USB 3.0 devices.
• DuetothedesignoftheIntel
®
X99 series chipset, all USB devices connected to the
USB2.0andUSB3.0portsarecontrolledbythexHCIcontroller.SomelegacyUSB
devicesmustupdatetheirrmwareforbettercompatibility.
USB BIOS Flashback port