SSH into USB Armory from RHEL 7 host

Hi,

I'm a new RHEL user and logging into a USB Armory for the first time.

USB Armory provides access via CDC Ethernet, so I need to SSH into that.

When I run this:

     ls -l /sys/class/net/

I get:

total 0
lrwxrwxrwx. 1 root root 0 Mar 28 21:39 enp0s20u7i1 -> ../../devices/pci0000:00/0000:00:14.0/usb3/3-7/3-7:1.1/net/enp0s20u7i1
lrwxrwxrwx. 1 root root 0 Mar 28 19:10 lo -> ../../devices/virtual/net/lo
lrwxrwxrwx. 1 root root 0 Mar 28 19:10 p3p1 -> ../../devices/pci0000:00/0000:00:1c.3/0000:02:00.0/net/p3p1
lrwxrwxrwx. 1 root root 0 Mar 28 19:10 virbr0 -> ../../devices/virtual/net/virbr0
lrwxrwxrwx. 1 root root 0 Mar 28 19:10 virbr0-nic -> ../../devices/virtual/net/virbr0-nic
lrwxrwxrwx. 1 root root 0 Mar 28 19:10 wlp3s0 -> ../../devices/pci0000:00/0000:00:1c.4/0000:03:00.0/net/wlp3s0

Which of these devices, if any, is a USB device?