Article Summary: This article contains information regarding XPS 13 Ultrabook (L322X) - the Left side USB 3.0 port will not recognize USB 3.0 devices.
When a USB 3.0 device is plugged into the left side port, it is not recognized as a USB 3.0 device and will run at USB 2.0 speeds.
See the User Guide for more information.
This behavior is by design.
When shipped from the factory, the left USB port is configured in the USB Debug mode in the Basic Input/Output System (BIOS or System Setup) to allow the ability to boot to a USB drive in the left port. (BIOS Default Setting.)
If USB 3.0 speed are desired in the left port, then boot to the BIOS (Press F2 at boot) (See Figures 1 & 2 Below):
Article ID: SLN285163Last Date Modified: 09/14/2019 04:17 AM