NM-C861 5B20S44306 Laptop Motherboard with CPU R54500U for GS451/GS551/GS751 3-15ARE05

Replacement laptop mainboard NM-C861 (part number 5B20S44306) featuring the onboard CPU R54500U. Specifically made for GS451, GS551 and GS751 models in the 3-15ARE05 series. Use this exact motherboard when repairing or swapping the mainboard in those laptop models — confirm model and part number compatibility before purchase.