What is WIFI with MIMO?

MIMO – Multiple Input/Multiple Output  is the same technology that makes 4G and 802.11n so speedy. Simply explained, it increases the number of antennas at the sender and receiver.MU MIMO stands for MultiUser MIMO

SU MIMO stands for SingleUser MIMO

Read more:
How MU-MIMO Wi-Fi works to improve the speed and capacity of home networks
How Does MU-MIMO Work?