Get more specifications of your hardware via hwinfo

The application hwinfo provides you  (very fast I may add) with all the technical information you could desire.

It may be already installed on your version otherwise install it with

sudo pacman -S hwinfo

To be able to see the short version from the video, try this in a terminal

hwinfo --short

You can do so much more.

Help yourself by reading the help.

hwinfo --help

More info about your bios would be

hwinfo --bios

Depending on your version you will find an alias in .bashrc that shows you the short list. The alias is