ALFA Network AWUS1900

Overview
Based on the specifications of this device, it's presumed to use RTL8814AU. RTL8814AU is confirmed in FCC photos.
 * 4x RP-SMA connectors

Links of Interest
FCC ID on the back is 2AB878814 (Iconnect grantee code), 00:C0:CA OUI
 * Photos @ this WiFi-Libre forum thread

Linux driver
CONFIG_RTL8814AU {USB_DEVICE(USB_VENDER_ID_REALTEK 0x0bda, 0x8813), RTL8814AU} {USB_DEVICE(0x2001, 0x331a), RTL8814A}, /* D-Link - D-Link */ {USB_DEVICE(0x0b05, 0x1817), RTL8814A}, /* ASUS - ASUSTeK */ {USB_DEVICE(0x056E, 0x400B), RTL8814A}, /* ELECOM - ELECOM */ {USB_DEVICE(0x056E, 0x400D), RTL8814A}, /* ELECOM - ELECOM */ {USB_DEVICE(0x7392, 0xA834), RTL8814A}, /* Edimax - Edimax */
 * On xxNull-lsk/rtl8812AU