iMac 2009, iMac 2010 and iMac 2011 - Apple Broadcom BCM94360CD - 802.11 a/b/g/n/ac with Bluetooth 4.0 Upgrade Kit | www.osxwifi.com | Native Support for Apple Broadcom BCM94360CD and BCM943602CDP for PC
Further Explained: Apple's iMac 2011 Model Hard Drive 'Restrictions'