This Airport/Bluetooth board may fix problems with making wireless connections to Wi-Fi routers or to Bluetooth equipped accessories like wireless speakers, headphones, and keyboards.
Warning: There are different versions of the WiFi card for different years and models, it will only work with the iMac 21.5" A1418 A2116 and 27" A1419 A2115 (2015 2017 2019 year ) Wifi Airport Card replacements (not compatible with other years). Please make sure you purchase a compatible model.
-Compatibility:
--Compatible with iMac 21.5″ A1418 (Late 2015 -Mid 2017)
Late 2015 For iMac 16.1 21.5" EMC 2889 MK142LL/A 1.6 GHz "Core i5" (i5-5250U)
Late 2015 For iMac 16.2 21.5" EMC 2889 MK442LL/A 2.8 GHz "Core i5" (i5-5575R)
Late 2015 For iMac 16.2 21.5" EMC 2833 MK452LL/A 3.1 GHz "Core i5" (i5-5675R)
Late 2015 For iMac 16.2 21.5" EMC 2833 MK452LL/A 3.3 GHz "Core i5" (i5-5775R)
Mid 2017 For iMac 18.1 21.5" EMC 3068 MMQA2LL/A 2.3GHz "Core i5" (i5-7360)
Mid 2017 For iMac 18.1 21.5" EMC 3068 MHK03LL/A 2.3GHz "Core i5" (i5-7360)
Mid 2017 For iMac 18.2 21.5" EMC 3069 MNDY2LL/A 3.0 GHz "Core i5" (i5-7400)
Mid 2017 For iMac 18.2 21.5" EMC 3069 MNE02LL/A 3.4 GHz "Core i5" (i5-7500)
--Compatible with iMac 21.5″ A2116 (Early 2019)
Early 2019 For iMac 19.2 21.5" A2116 EMC 3195 MRT32LL/A 3.6GHz Core i3 (i3-8100)
Early 2019 For iMac 19.2 21.5" A2116 EMC 3195 MHK23LL/A 3.6GHz Core i3 (i3-8100)
Early 2019 For iMac 19.2 21.5" A2116 EMC 3195 MRT42LL/A 3.0GHz Core i5 (i5-8500)
Early 2019 For iMac 19.2 21.5" A2116 EMC 3195 MHK33LL/A 3.0GHz Core i5 (i5-8500)
Early 2019 For iMac 19.2 21.5" A2116 EMC 3195 BTO/CTO 3.2GHz Core i7 (i7-8700)
--Compatible with iMac 27" A1419 (Late 2015 -Mid 2017)
Late 2015 For iMac 17.1 27" EMC 2834 MK462LL/A 3.2 GHz Core i5 (i5-6500)
Late 2015 For iMac 17.1 27" EMC 2834 MK472LL/A 3.2 GHz Core i5 (i5-6500)
Late 2015 For iMac 17.1 27" EMC 2834 MK482LL/A 3.3 GHz Core i7 (i7-6600)
Late 2015 For iMac 17.1 27" EMC 2834 BTO/CTO 4.0 GHz Core i7 (i7-6700K)
Mid 2017 For iMac 18.3 27" EMC 3070 MNE92LL/A 3.4 GHz Core i5 (i5-7500)
Mid 2017 For iMac 18.3 27" EMC 3070 MNEA2LL/A 3.5 GHz Core i5 (i5-7600)
Mid 2017 For iMac 18.3 27" EMC 3070 MNED2LL/A 3.8 GHz Core i5 (i5-7600K)
Mid 2017 For iMac 18.3 27" EMC 3070 BTO/CTO 4.2 GHz Core i7 (i7-7700K)
--Compatible with iMac 27" A2115 (Early 2019-Mid 2020 )
Early 2019 For iMac 19.1 27" A2115 EMC 3194 MRQY2LL/A 3.0GHz Core i5 (i5-8500)
Early 2019 For iMac 19.1 27" A2115 EMC 3194 MRr02LL/A 3.1GHz Core i5 (i5-8600)
Early 2019 For iMac 19.1 27" A2115 EMC 3194 MRR12LL/A 3.7GHz Core i5 (i5-9600K)
Early 2019 For iMac 19.1 27" A2115 EMC 3194 BTO/CTO 3.6GHz Core i9 (i9-9900K)
Mid 2020 For iMac 20.1 27" A2115 EMC 3442 MXWT2LL/A 3.1GHz Core i5 (i5-10500)
Mid 2020 For iMac 20.1 27" A2115 EMC 3442 MXWU2LL/A 3.3GHz Core i5 (i5-10600)
Mid 2020 For iMac 20.1 27" A2115 EMC 3442 MXWV2LL/A 3.8GHz Core i7 (i7-10700K)
Mid 2020 For iMac 20.1 27" A2115 EMC 3442 BTO/CTO 3.6GHz Core i9 (i9-10910)
-Both of the Model "Axxxx"and EMC "xxxx " Number are located beneath the lower cover of the laptop, please double check it to determine the compatibility.