HP ProBook 450 G3 450 G4 455 G4 470 G4 Power Button ON/OFF Switch Board

This power button ON/OFF switch board is a high quality replacement designed for HP ProBook 450 G4 laptops. It is used to restore proper power control when the laptop fails to turn on, has an unresponsive power button, or requires multiple presses to start. The switch board connects directly to the motherboard via a ribbon cable and ensures accurate signal transmission for reliable startup and shutdown performance. It is specifically compatible with HP ProBook 450 G4 models and is ideal for fixing issues caused by a faulty, worn out, or damaged power switch assembly