TRENDnet TEW-821DAP V1.0R

FCC photos presumably indicate this device is using QCA9982, however, the photo quality is not particularly high. A distinctive 'Lead-Free' logo (as well as revision indicator - 'Rev.A1') common to Cameo products is found on the PCB - they are the assumed manufacturer.

Default SSID format and OUIs are per a marketplace (eBay) label - 5GHz is not specified, but is used, per WiGLE data.