Broadcom BCM94331CSAX

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Broadcom BCM94331 CSAX

FCC approval date: 07 February 2012

Amazon image

B00LAW6146 (Flag of the United States.svg, On Amazon, On CCC)
multiple revisions of this device, use caution

Interface: PCIe (non-standard connector)

ID: 14e4:4331 (7 addl. devices) SS: 106b:00ef
Windows: PCI\VEN_14E4&DEV_4331&SUBSYS_00EF106B

IC ID: 4324A-BRCM1062

WI1 chip1: Broadcom BCM4331

Additional chips
Bluetooth SoC;Broadcom;BCM20702A3;BCM20702, A3KWFBG, HC1212 P13, 190644 N1W;1;
2.4/5GHz Front End Module;Skyworks;SE5515;SE5515, 2113J, 1211 CN;2;
5GHz Power Amplifier IC;Skyworks;SE5019T;SiGe, 5019T, 110FS;1;
2.4GHz Power Amplifier IC;Skyworks;SE2598L;SiGe, 2598L, 1240W;1;

Probable Linux driver
should work with Broadcom's latest wl driver is now available on Broadcom's site is available in...
Alberto Milone's Broadcom testing PPA or the broadcom-wl packages (w/ dkms or w/ no dkms) in the Arch AUR

.. or, alternatively, b43 (in backports, k3.2+)
PCI ID not yet observed in any mainline kernel /
this list (note: outdated)

(see also passys)

Antenna connector: MHF4

abgn, 3x3:3

Flags: bluetooth 4.0

OUI: 20:C9:D0 (-, 1 W)

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

The PCIe connector for this device is proprietary

(see external links below for more info).

The antenna connector used for this card is presumed to be MHF4.

Broadcom BCM94331CSAX

This module is using the following components...
different chip pkg. from the standard BCM4331KMLG)
  • w/ 2 Skyworks SE5515 Dual Band Front End Modules (FEMs)
  • w/ 1 Skyworks (SiGe) SE5019T 5GHz Power Amplifier (PA)
  • w/ 1 Skyworks (SiGe) SE2598L 2.4GHz Power Amplifier (PA)
  • Broadcom BCM20702 rev.A3 Bluetooth SoC (USB)

This is the wireless module for at least the...

Apple MacBook Pro w/ Retina display (2012)

Additional external links

Teardowns w/ module visible

(Apple MacBook Pro 2012 w/ Retina display)


(lspci dump [sans subsystem])
Subsystem appears to be 106b:00ef



The 20:C9:D0 OUI used in this entry is per the module depicted in the above photo..