Edimax EW-7822UAC

Edimax EW-7822 UAC V1.0
Availability: common

FCC approval date: 04 March 2013
UPC: 649659022959 (UPC DB, On eBay)
Country of manuf.: China

Amazon image

ASINs
B00BXAXO7C (, On Amazon, On CCC)
B00F97PU18 (, On Amazon, On CCC)
multiple revisions of this device, use caution

Interface: USB

USB 3.0
Connector: Male A
Form factor tags: dongle

ID: 7392:a822
Windows: USB\VID_7392&PID_A822

FCC ID: NDD9578221212

WI1 chip1: Realtek RTL8812AU

Probable Linux driver
Realtek vendor driver (8812au)
Driver version 5.3.4 available on Edimax site
(select EW-7811UAC on Edimax download page)
See also aircrack-ng rtl8812au repo on GitHub
USB ID not yet observed in any mainline kernel /
this list (note: outdated)
(see also passys)

Windows driver
see Realtek's website

Antenna connector: U.FL

abgn+ac, 2x2:2

Flags: flip-up antenna

OUI: none specified

For a list of all currently documented Realtek chipsets with specifications, see Realtek.

"1244-01000871-50Z" appears to be silkscreened on the board in the FCC photos.

The flip-up antenna (LYNWAVE ALA110-221020) is connected via an internal U.FL / IPEX connector.

Based on Edimax's provided drivers, the USB ID of the device is presumed to be 7392:a822.

The drivers also indicate a single-stream RTL8811AU based device

(USB ID: 7392:a811, AC600, EW-7811UAC?) may be released later by Edimax.

Warning: each time the device scans it seems to cause a 3second delay in

packets for several seconds (Linux 3.13 using patched 1.0.1.6 drivers).

As network manager does this by default every 2mins this is can be very problematic.

Edimax EW-7822UAC is a USB WiFi stick, which supports wireless connections 802.11ac.

The adapter bases on the Realtek RTL8812AU chipset and has the USB ID 7392:a822:

Bus 003 Device 002: ID 7392:a822 Edimax Technology Co., Ltd

Until now no driver for the EW-7822UAC is included in the standard Linux kernel.

However, Edimax provides a Linux driver for this adapter,

which has to be compiled from source per hand.

Alternatively, on can use a Open-Source Linux driver from GitHub

by downloading the ZIP file which is available on the linked page.

The downloaded file can be compiled by:

cd Downloads/rtl8812AU_8821AU_linux-master
make
sudo make install
sudo modprobe 8812au

The compiled kernel module 8812au.ko will be used automatically for the stick after reboot.

As of March 2017, Edimax has provided a detailed tutorial for compiling the Open Source driver on higher kernel versions (e.g. above 4.1)

Images