. Ideal for small & medium-sized networks the Cisco Aironet 1850 Series delivers industry-leading performance for enterprise & service provider markets via enterprise-class 4x 4 MIMO four-spatial-stream access points that support the IEEE's 802.11ac Wave 2 specification Key Product Info. Multiuser MIMO allowing transmission of data to multiple 802.11ac Wave 2 capable clients simultaneously to improve client experience Transmit beamforming technology to improve downlink performance to mobile devices including one- two- & three-spatial-stream devices on 802.11ac while improving battery life on mobile devices such as smartphones & tablets What's in the box?. Cisco Aironet 1852 E External power adapter