RS780Q-LAIO / G41T-LAIO Main Board B50r1 for B505 B500

Replacement motherboard RS780Q-LAIO and G41T-LAIO, model B50r1, compatible with B505 and B500 laptops. This main board matches the original RS780Q-LAIO G41T-LAIO B50r1 specification for direct replacement in the B505/B500 series.