server@server:~$ lsusb && lsusb -t
Bus 004 Device 002: ID 8087:8001 Intel Corp.
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 8087:8009 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 07ca:1830 AVerMedia Technologies, Inc. AVerTV Volar Video Capture (H830)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/14p, 480M
|__ Port 2: Dev 3, If 0, Class=Vendor Specific Class, Driver=, 480M
|__ Port 2: Dev 3, If 1, Class=Vendor Specific Class, Driver=, 480M
|__ Port 2: Dev 3, If 2, Class=Vendor Specific Class, Driver=, 480M
|__ Port 2: Dev 3, If 3, Class=Vendor Specific Class, Driver=, 480M
|__ Port 2: Dev 3, If 4, Class=Vendor Specific Class, Driver=, 480M
|__ Port 2: Dev 3, If 5, Class=Vendor Specific Class, Driver=, 480M
|__ Port 2: Dev 3, If 6, Class=Vendor Specific Class, Driver=, 480M