USB-C in t420t430

Depending on the modelspec, the one on the right supports Thunderbolt If you're only charging or running USB devicesdock, I would use the

Slot in PC · Software · Accessories Series Presentation Displays · All-in-One LED USB type C, as well as DisplayPort and HDMI These advanced

usba053 Novoo 9-in-1 Pro USB-C Hub with 3 USB-A Port, USB-C PD Port, HDMI Port, SD Card and TF Slot, VGA Port, Ethernet Port, Dark Grey more

usb a slot Blasting it with compressed air will shake loose dirt, which you can then clean out with the toothpick If a USB-C port isn't working, or the