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Serial Port
Posts: 50
Registered: ‎06-12-2009
Location: US
Views: 705
Message 1 of 2

T480 - Will it drive an external "travel monitor" over USB-C with no dock?

I just ordered a T480 for son for college. I'd like to buy him a USB-C "travel monitor" (eg. the AOC 1601FWUX or the Asus MB169B+). These sorts of monitors are only connected by USB-C (for both signal and power). Will that work on a T480?


Obviously the T480 has USB-C ports (two of them):


  • 1 x USB 3.1 Gen 1** Type-C (Power Delivery, DisplayPort, Data transfer)
  • 1 x USB 3.1 Gen 2** Type-C / Intel Thunderbolt 3 (Power Delivery, DisplayPort, Data transfer)

From the stated specs, both have can perform the function of a DisplayPort connection, so I guess that the answer is "yes, this will work." However, the some of the travel monitors state that the computer must support "USB-C DP Alt Mode." I can't figure out whether the T480 supports "USB-C DP Alt Mode." I've searched this forum and the specs, but found nothing specifically on this. 


I realize that if I also bought one of the Lenovo Docks, that he could run a second monitor. However, the goal is to use a "travel monitor" which he can stuff in his backpack along with the T480 and won't need anything but a USB-C cable (properly rated for USB 3.x data transmission) to run it. 

Support Specialist
Posts: 1,895
Registered: ‎08-02-2018
Location: US
Views: 619
Message 2 of 2

Re: T480 - Will it drive an external "travel monitor" over USB-C with no dock?

Hi SoonerLater! As per the product reference: and the user guide:, you can extend the display externally from the USB-C port to USB-C port, HDMI to HDMI or HDMI to VGA, DP to DP or USB-C to DP.

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