Please remind the cable Does Not comes with program need to remove the original chip from the original sleep cable and solder it. ^^ It's pefectly replacement for MacBook Air 13.6" M2 A2681 821-04129-02 821-04129-A EMC 4074 MLY43LL/A, It's Also Replacement for Macbook Air A3113 2024 M3 EMC 8611 ^^ It's Top A+ quality, we tested it very carefully before we ship it, we're be sure it will working well with your Device ^^ professional installation is highly recommended, if you're not familar about how to install it, Please ask your local repairs store professional help you ^^ we offer 2 years after Service, If you got it no working well, or you don't like it or other reasons, you can contact us by for a replacement or a fully refund within 2 years