A1990 MacBook Pro 15-inch Keyboard with Touch Bar – Replacement with 3rd Gen Butterfly Mechanism, Backlit US Layout

Replacement keyboard assembly for A1990 MacBook Pro 15-inch with Touch Bar (2018-2019 models). Features third-generation butterfly mechanism with silicone membrane under keycaps – this dust-sealing layer was introduced to prevent debris ingress affecting key function-7-9. Note: Even with the membrane, some models remained eligible for Apple’s extended keyboard service program-5. Backlight support included. US layout. Professional installation highly recommended due to complex disassembly requirements-1. Factory direct supply.