Standard: 802.11abgn, 450M
Speed up to 450Mbps
Dual Band: 2.4GHz / 5GHz
Warranty: 6 Months
A1311
Mid 2011 For iMac 12.1 21.5" EMC 2428 MC309LL/A 2.5 GHz "Core i5"
Mid 2011 For iMac 12.1 21.5" EMC 2428 MC812LL/A 2.7 GHz "Core i5"
Mid 2011 For iMac 12.1 21.5" EMC 2428 MC812LL/A 2.8 GHz "Core i7"
Late 2011 For iMac 12.1 21.5" EMC 2428 MC978LL/A 3.1 GHz "Core i3"
A1312
Mid 2011 For iMac 12.2 27" EMC 2374 MC813LL/A 2.7 GHz "Core i5"
Mid 2011 For iMac 12.2 27" EMC 2374 MC814LL/A 3.1 GHz "Core i5"