Here is an adapter that upgrades your router to be able to handle connections on the 6GHz band. The ARRIS Surfboard WiFi 6E Network Upgrade Adapter allows your router to handle more simultaneous connections. It also reduces lag and disconnections.
You can set up this device with the SURFboard Central app. You will be able to enjoy 4.8Gbps WiFi speeds. The unit has a 2.5Gbps Ethernet port. You can connect this adapter to any gateway or router.