Used BCM94331PCIEBT4 Airport BT Wireless Card
Fits:
Apple MacBook Pro 13″ Early/Late 2011
Apple MacBook Pro 13″ Mid 2012
Apple MacBook Pro 15″ Early/Late 2011
Apple MacBook Pro 15″ Mid 2012
Fully tested working part
Part numbers: BCM94331PCIEBT4, 607-8959, 661-6510, 607-8958