BUY QT3840BC https://www.utsource.net/itm/p/8925964.html

QT3840BC is a BGA (Ball Grid Array) device manufactured by Quantenna. It is a 4x4 802.11ac Wave 2 MU-MIMO Wi-Fi radio with integrated power amplifier, low noise amplifier, and power management. It is designed for use in access points, routers, gateways, and other wireless networking devices. It supports up to 867 Mbps PHY rate and features advanced beamforming, MU-MIMO, and dynamic frequency selection. It also supports dual-band operation and is backward compatible with 802.11a/b/g/n. (For reference only)