The MR90X from Mercusys is a router, a device to which other devices (e.g., computer, mobile phone, television) connect either wirelessly or via cable, and it distributes internet access to them. For internet access, it needs to be connected to a modem. It is Wi-Fi 6 generation, the latest Wi-Fi standard that offers speeds up to 40% higher than Wi-Fi 5. It coordinates communication with connected devices to consume less battery and performs better in environments with many Wi-Fi devices. Ideal for homes with many smart devices. It broadcasts three signals, one at 2.4GHz and two separately at 5GHz. It offers higher speeds compared to single band and more efficient connection of multiple devices compared to dual.

The device has VPN (Virtual Private Network) configuration capability so that traffic from all devices on our network passes through it. The VPN acts as an intermediary between us and the rest of the internet, allowing us to appear geographically in another country and the pages we visit to see the VPN's address as the visitor, not ours. This provides anonymity and access to geographically restricted content. VPN services are usually paid with a subscription.

With MAC address filtering, it allows specific devices to connect based on their unique MAC address, excluding any device with a MAC address that has not been designated as acceptable.