Asus Rog Maximus X Apex User Manual page 36

2. Thermal sensor connectors (2-pin T_SENSOR1-2)
This connector is for the thermistor cable that allows you to monitor the temperature of
your motherboard's critical components and connected devices.
3. USB 3.1 Gen 1 connector (20-1 pin U3G1_12)
This connector allows you to connect a USB 3.1 Gen 1 module for additional USB
3.1 Gen 1 front or rear panel ports. With an installed USB 3.1 Gen 1 module, you can
enjoy all the benefits of USB 3.1 Gen 1 including faster data transfer speeds of up to
5 Gbps, faster charging time for USB-chargeable devices, optimized power efficiency,
and backward compatibility with USB 2.0.
The USB 3.1 Gen 1 module is purchased separately.
The plugged USB 3.1 Gen 1 device may run on xHCI or EHCI mode depending on the
operating system's setting.
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Chapter 1: Product Introduction