WIFI-4 - USB WiFi module 2.4 / 5.8 gHz

Features
- 2.4 / 5.8 gHz
- Support 802.11ac standard WiFi
- Compatible with 802.11b/g/n wireless devices
- High wireless transmission rate, dual band (2.4GHz/150Mpbs 5.8GHz/433Mbps)
- Support WPA/WPA2/WEP/802.1X/WMM data encryption
- Compatible with Raspberry Pi and all the Acme Systems Linux boards
- Compatible with Windows, Linux and MAC OS X PC
- Strong anti-interference ability
- External antenna
- Power supply: 5VDC
Linux Kernel config
With make ARCH=arm menuconfig
set these flags:
Device Drivers -->
[*] Network device support --->
[*] Wireless LAN --->
MediaTek MT76x0U (USB) support
Install the binary nonfree firmware on Debian
From the Debian command line type:
cd /lib/firmware
sudo mkdir mediatek
cd mediatek
sudo wget http://anduin.linuxfromscratch.org/sources/linux-firmware/mediatek/mt7610u.bin
Then reboot with:
sudo reboot
Datasheet
Wi-fi adapters