I use an old mac mini which has onboard gigabit ethernet (lan side) and an apple thunderbolt to gigabit ethernet dongle for wan. I am using 900/300 fibre and it

I use an old mac mini which has onboard gigabit ethernet (lan side) and an apple thunderbolt to gigabit ethernet dongle for wan. I am using 900/300 fibre and it has been rock solid. No need to buy expensive stuff for this task.