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Availability: now

FCC approval date: 23 November 2015
Country of manuf.: China
Series: AC3100

Amazon image

B01H9QMOMY (Flag of the United States.svg, On Amazon, On CCC)
On Newegg

Interface: PCIe

Form factor tags: single-lane

ID: 14e4:43c3 (1 addl. devices) SS: 1043:86fb
Windows: PCI\VEN_14E4&DEV_43C3&SUBSYS_86FB1043

Industry Canada ID: 3568A-PCIE0U00

WI1 chip1: Broadcom BCM4366

Antenna connector: RP-SMA

abgn+ac, 4x4:4

Flags: 1024QAM, NitroQAM, MU-MIMO, DFS (slave)

OUI: 34:97:F6 (3 E, 3 W, 2016)

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

2167 Mbps - 4SS 5GHz 802.11ac (80MHz chan., 1024QAM),
1000 Mbps - 4SS 2.4GHz 802.11n (40MHz chan., 1024QAM) = 3100 Mbps class

AC3100 Dual-Band PCIe Wi-Fi Adapter

Product page  • Support page  • Downloads

See also Broadcom BCM94709R4366AC - WFA64986 (12/05/2016)

Reference design - 802.11ac 4x4 Wireless Adapter



Forum threads[edit]

Network controller [0280]: Broadcom Device [14e4:43c3] (rev 04)
   Subsystem: ASUSTeK Computer Inc. Device [1043:86fb]
   Kernel modules: brcmfmac
As of 18 Oct 2016 there is still no Linux-compatible firmware for this device


  • The PCE-AC88 uses the 802.11a/b/g/n/ac standards with Broadcom's TurboQAM
(256 QAM) and NitroQAM (1024 QAM) to reach speeds up to 2167 Mbps.

This device is using a Broadcom BCM4366 (4x4 11ac) for maximum PHY rates of 2.1Gbps

on the 5GHz band (11ac) and 1Gbps on the 2.4GHz band (11n w/ 1024 QAM [NitroQAM]).

In order to reach 1Gbps/2.4 GHz, RT-AC88U must connect to the ASUS PCE-AC88

or RT-AC88U in media bridge mode.


  • 802.11n: With 802.11n (both 2,4/5GHz) the speed is 150, 200 and 250 Mbps per stream
for respectively 802.11n, w/ TurboQAM and w/ NitroQAM, all with 40MHz bandwidth
(so with 4 streams 600, 800 and 1000 Mbps).
  • 802.11ac: With 802.11ac (only 5GHz) it is possible to reach 433 and 542 Mbps per stream
with respectively 802.11ac and 802.11ac with NitroQAM when 80MHz of bandwith is used
(so with 4 streams 1733 and 2167 Mbps).


  • The adapter has 4 detachable RP-SMA dual-band antenna's, connected to a magnetic base.
The base has 4 cables with RP-SMA connectors that connect to the PCIe card, one for each antenna.
The antenna's can also be mounted directly on the RP-SMA connectors of the PCIe card
instead of the magnetic base.


  • The adapter uses the PCIe x1 interface and fits in a single PCIe x1, x4 and x16 slot.
If the card uses the PCIe 2.0 x1 or PCIe 3.0 x1 protocol is yet unknown.
It doesn't matter anyway, because PCI-E 2.0 x1 provides 500MBps,
which the fastest 802.11ac connection can't even half-saturate.
The card is passively cooled by a fairly large heat sink for a single-slot card.

Per ASUS's drivers, the PCI ID for the device is 14e4:43c3.. which seems to be the default 4366 ID.

BCM4366_D11AC_ID	0x43c3    /* 4366 802.11ac dualband */
BCM4366_D11AC2G_ID	0x43c4    /* 4366 802.11n 2.4G device */
BCM4366_D11AC5G_ID	0x43c5    /* 4366 802.11ac 5G device */