Using udisks2 (sudo pacman -S udisks2).
udisks2
udisksctl mount -b /dev/sdxn
Find the drive’s data in /run/media/$USER/$DEVICE
/run/media/$USER/$DEVICE
# Unmount udisksctl unmount -b /dev/sdxn # Power off the drive udisksctl power-off -b /dev/sdxn
source