Upgrade or repair your laptop with the original HP Elitebook 840 G4 i7-7600U / i7-7500U Notebook Mainboard (Part Numbers: 6050A2854301, 917503-001). Engineered for high performance with DDR4 memory support, this motherboard ensures seamless multi-tasking and peak system stability. Fully tested and guaranteed authentic, available now at Laptop Care IT BD with reliable warranty support and expert installation services in Bangladesh.