Broadcom BCM94331CSAX

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...


 * Broadcom BCM4331 (BCM4331KML1G [P21],
 * 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)


 * Apple Macbook Pro 15" (Retina, A1398) (MC975, MC976)

Teardowns w/ module visible

 * Cracking Open the Apple MacBook Pro with Retina Display on TechRepublic
 * (Apple MacBook Pro 2012 w/ Retina display)


 * MacBook Pro with Retina Display Bill of Materials on iFixit

Other

 * Skvo notes the pinout of the proprietary connector used on tonymacx86 Forums
 * (HOWTO) 2012 Retina Macbook Pro and openSUSE Linux on SUSE Linux Forum
 * (lspci dump [sans subsystem])


 * C. Huang on Quora notes BCM4331 as used for the Apple MacBook Pro 2012
 * Thread on applelife.ru w/ lspci dump (and subsystem)
 * Subsystem appears to be 106b:00ef

Images

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