Atheros QCA6174 mini pcie 2.4G/5G 1200Mbps Dual band wifi network card 802.11AC wireless adapter + Bluetooth 4.1 - AliExpress
GitHub - RrOoSsSsOo/QCA6174-samsung-galaxy-book-12-w720: Set of drivers for Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter includen into Samsung Galaxy Book 12.0 w720