```
vyos@vyos:~$ show system usb
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 3: Dev 4, If 0, Class=Vendor Specific Class, Driver=qcserial, 480M
|__ Port 3: Dev 4, If 2, Class=Vendor Specific Class, Driver=qcserial, 480M
|__ Port 3: Dev 4, If 3, Class=Vendor Specific Class, Driver=qcserial, 480M
|__ Port 3: Dev 4, If 8, Class=Vendor Specific Class, Driver=qmi_wwan, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 3: Dev 3, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 3: Dev 5, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 4: Dev 7, If 0, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 7, If 1, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 7, If 2, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 7, If 3, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 6, If 2, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 6, If 0, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 6, If 3, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 6, If 1, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 4, If 2, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 4, If 0, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 4, If 3, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
|__ Port 4: Dev 4, If 1, Class=Vendor Specific Class, Driver=ftdi_sio, 480M
```
```
vyos@vyos:~$ show system usb serial
No USB to serial converter connected
```
```
vyos@vyos:~$ show system usb serial
Device Model Vendor
------ ------ ------
usb0b1.3.3.4p1.0 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.3.3.4p1.1 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.3.3.4p1.2 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.3.3.4p1.3 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.3.4p1.0 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.3.4p1.1 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.3.4p1.2 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.3.4p1.3 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.3p1.0 MC7710 Sierra Wireless, Inc.
usb0b1.3p1.2 MC7710 Sierra Wireless, Inc.
usb0b1.3p1.3 MC7710 Sierra Wireless, Inc.
usb0b1.4p1.0 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.4p1.1 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.4p1.2 Quad_RS232-HS Future Technology Devices International, Ltd
usb0b1.4p1.3 Quad_RS232-HS Future Technology Devices International, Ltd
```