TP-link Archer MR400Â is a powerful 3G/4G router from TP-Link, designed for users who need high data transfer speed in a WiFi network.
This model combines support for most popular 3G and LTE mobile Internet standards with a high-speed dual-band WiFi module that supports the 802.11ac protocol.
The Archer MR400 is the older model of TP-Link 3G/4G routers that is ideal for use in an office, apartment, country house, or any other place where you need to provide quick access to the mobile Internet for a large number of wireless devices.
TP-Link Archer MR400 Specifications   Due to the configuration of the MIMO 3x3 antennas in the 2.4 GHz band and the MIMO 2x2 in the 5 GHz band, the Archer MR400 provides a total transfer rate of up to 1350 Mbps (450 Mbps in the 2.4 GHz network and 867 Mbps in the 5 GHz).
For comparison: the predecessor Archer MR200 model is limited to a speed of 300 Mbit/s in the 2.4 GHz network and 433 Mbps in the 5 GHz network.
At the same time, it's best to connect the demanding bandwidth to the 5 GHz network: televisions, game consoles, wireless storage devices, etc.