Belkin F9L1109 v1

Overview
Driver Manual

"AJT00C-1.0" is silkscreened on the board in the FCC photos.
 * This is the same text found on the Linksys WUSB6300's board.

This thing is using two Skyworks (SiGe) 5022T / SE5022T 5GHz Power Amplifiers and two Skyworks SKY85601 (SKY85601-11?) SDPT Switch w/ LNA modules.

The USB ID for this device is 050d:1109.
 * It is specified in the driver set for the Edimax EW-7822UAC as being for an AC950 Belkin device.

Realtek 11ac 8812A USB WLAN MP Diagnostic Program 0.0027.20121102 was the test program specified as used in the FCC docs.

According to this topic on the Linux Mint forum, the driver from GitHub works with this device.