Bpi-mt7615 802.11 Ac Wifi 4x4 Dual-band Module, Support R2 And R64 - Demo Board Accessories - AliExpress
PCE-AC88 Wireless Adapter 4x4 802.11ac Wireless AC3100 PCIe WiFi adapter speed up to 3100Mbps - AliExpress
Amazon.com: ASUS PCE-AC88 Dual-Band 4x4 AC3100 WiFi PCIe adapter with Heat Sink and External magnetic antenna base allows flexible antenna placement to maximize coverage : Electronics
Action-Tec WEB 600Q 4x4 802.11ac Wireless Extender | eBay
Cisco 802.11AC Wave2/ 4X4:4SS Wireless White | Techinn
Cisco Meraki Dual-band,802.11ac Wave 2 4x4:4 MU-MIMO Access Point w/ B - 5 Year Warranty
MEDIATEK or Qualcomm QCA QCN9074 WIFI 6E 11AX 4X4 WIFI MODULE - Pine Series - Qualcomm 4x4 11ax AP mode enabled radio module! COMPEX, SPARKLAN, WALLYS, INTEL
Grandstream GWN7630 802.11ac Wave 2 4x4:4 Wireless Access Point