Edimax EW-7822UAC

multiple revisions of this device, use caution
abgn+ac (AC1200)
	AC1200 Wireless Dual-Band USB Adapter
Homepage	Product page
WikiDevi.wi-cat.ru	Edimax EW-7822UAC
Platform
Brand • Model • Rev	Edimax EW-7822UAC V1.0
Interface	USB 3.0
Connector	Male A
Form factor	dongle
ID:7392:a822; Windows: USB\VID_7392&PID_A822
FCCID	NDD9578221212
Chip1	Realtek RTL8812AU
	OUI: none specified
Antenna Connection	U.FL
MIMO status	2x2:2
Wireless Standards	IEEE 802.11a/b/g/n/ac
802.11ac	up to 867 Mbps
802.11n	up to 300/300 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
802.11a	up to 54 Mbps
Operating Frequency	2.4 or 5 GHz
Other
Manuf/OEM/ODM	Edimax
	Flags:; flip-up antenna
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See also aircrack-ng rtl8812au repo on GitHub ; USB ID not yet observed in any mainline kernel /; this list (note: outdated); (see also passys)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
Retail
Availability	common
(Est.) release date	04 March 2013
UPC	649659022959 ; (UPC DB, On eBay)
ASINs	B00BXAXO7C ; B00F97PU18
Netgear A6200 v2	NDD9578221212
Rosewill RNX-AC1200UBE	W6R-AC1200UBE; NDD9578221212
Samsung SEA-W01ACN	NDD9578221212
ZyXEL AC240	NDD9578221212

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

For a list of all currently documented Edimax device with specifications, see Edimax.

• 867 Mbps - 2SS 5GHz 802.11ac (80MHz chan.),

• 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = AC1200 class

Overview

"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)

Retail Images