The primary differences between 2G and 5G routers are the range (distance it can reach) and bandwidth (speed) they provide. The 2G band provides coverage at a longer range but transmits data at slower speeds. The 5G band provides less coverage but transmits data at a faster speed. Considering growers have many different types of setups, and more times than not have their routers further away from their grow setup, we choose to offer 2G compatibility since it provides a better range. If you need faster speed, you can use 5G routers.