This product is either discontinued or we cannot get that from suppliers.
VOLANS VL-UW120, USB 3.0, Chipset RTL8812, Dual band 2DBI, Wireless IEEE 802.11ac, IEEE 802.11a, IEEE 802.11n, IEEE 802.11g, IEEE 802.11b, 5GHz, 2.4GHz, 20dBm (MAX EIRP).
Volans AC1200 High Gain Wireless Dual Band USB Adapter (VL-UW120).