Edimax EW-7822UAC

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abgn+ac (AC1200)
AC1200 Wireless Dual-Band USB Adapter
EW-7822UAC-1.png
Homepage
WikiDevi.wi-cat.ru
Platform
BrandModelRev
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
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
Flags:
flip-up antenna

Windows driver
see Realtek's website

Retail
Availability common
(Est.) release date 04 March 2013
UPC 649659022959
(UPC DB, On eBay)
ASINs B00BXAXO7C Flag of the United States.svg
B00F97PU18 Flag of the United States.svg
 FCC ID
Netgear A6200 v2NDD9578221212
Rosewill RNX-AC1200UBEW6R-AC1200UBE
NDD9578221212
Samsung SEA-W01ACNNDD9578221212
ZyXEL AC240NDD9578221212
 Chip1 brandChip2 brand
Edimax EW-7822GTNRealtek
Edimax EW-7822MACRealtek
Edimax EW-7822UACRealtek
Edimax EW-7822UANRealtek
Edimax EW-7822UTCRealtek

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 device is using two Skyworks (SiGe) SE5022T / 5022T 5GHz Power Amplifiers
and two Skyworks SKY85601 (SKY85601-11?) SPDT Switch w/ LNA modules.
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.

Links of Interest

Datasheet


Review of Linux Compatibility

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)

Pictures

Retail Images