TRENDnet TEW-804UB

AC600 Dual Band USB Adapter

"Ver:A0-0 13/01/10" appears to be silkscreened on the RTL IC side of the board.
 * "Made in China" and a Plotech logo is silkscreened on the other side of the board.

This is a micro sized dongle. It's about half or a bit less in length than a full size dongle.. and about the same size as the Linksys AE6000.

Some similar models include Edimax EW-7811UTC and LM Technologies LM808.
 * Though these devices seem identical to the TEW-804UB this device does not seem to
 * work with the driver for RTL8811AU/RTL8812AU/RTL8821AU modified with correct USB ID.

Linux driver not functional.
 * https://github.com/abperiasamy/rtl8812AU_8821AU_linux
 * https://github.com/ulli-kroll/rtl8821au
 * https://github.com/gnab/rtl8812au/