It's an intelligent box with hard drives in it.
It has a scalable storage space.
It centrally stores all your files.
It's connected to the internet so you can access it anywhere.
It's secure and reliable.
I got fibre to my home last week. Before this I used a LTE router (rain) connected to the E-WAN port and a cellphone (Telkom) to the USB port of an Asus DSL-AC52U router.
I decided to keep using the Asus router and leave the Telkom router in the box.
With the fibre connection Whatsapp messages...