Buffalo WI-U2-400D

abgn+ac (AC1200)
AC1200 USB Wireless Adapter
WikiDevi.wi-cat.ru	Buffalo WI-U2-400D
Platform
Brand • Model • Rev	Buffalo WI-U2-400D
Interface	USB 2.0
Connector	Male A
Form factor	dongle
ID:0411:0222 Windows: USB\VID_0411&PID_0222
FCCID	none specified
Chip1	Broadcom BCM43526
OUI: none specified
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
Probable Linux driver none USB ID not yet observed in any mainline kernel / this list (note: outdated) (see also passys)
Retail
Availability	Japan only

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

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

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

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

Overview

This adapter is apparently sold with the Buffalo WZR-D1100H in a bundle pack (WZR-D1100H/U on Amazon.co.jp.

The device is presumed to use BCM43526. It is likely identical to the Buffalo WI-U2-866D (minus strictly regulatory differences)..