If the trackpad touchpad ribbon flex cable in your laptop is damaged or defective and not working properly, this 821-02716 touchpad flex cableis the perfect solution to your trackpad not working problem. | The A1708 trackpad cable connects the trackpad and keyboard to the logic board, Installation is easy but do see some online videos to ensure you dont damage it. | Compatible with MacBook Pro 13" Retina A1708 (Late 2016 to Mid 2017), A2159 (2019) and A2289 A2338 (2020):Fit for MacBookPro13,1 Late 2016:(MLL42LL/A),MacBookPro14,1 Mid 2017:(MPXQ2LL/A),MacBookPro15,4 Touch Bar, 2 TB 3 2019:(MUHN2LL/A,MUHP2LL/A,MUHQ2LL/A,MUHR2LL/A,BTO),MacBookPro16,3 Touch Bar, 2 TB 3 2020:(MXK62LL/A,MXK72LL/A,MXK32LL/A,MXK52LL/A,BTO),MacBookPro17,1 M1 2020:(MYDA2LL/A,MYD82LL/A,MYDC2LL/A,MYD92LL/A). | Identifying Numbers: PPN: 821-01002-01, 821-01002-A, 821-02716. | Each 821-01002-A IPD Trackpad Keyboard Flex Cable is tested before shipping.