Replacement Motherboard for Y520-15IKBN — DY512 NM-B191 (5B20N00278) with i5-7300 CPU & GTX 1050 2G GPU

Replacement mainboard compatible with Y520-15IKBN laptops. Model: DY512 / NM-B191, part number 5B20N00278. This unit includes an i5-7300 CPU and a GTX 1050 2G GPU, matching the original system specifications. Suitable for repairing or restoring Y520-15IKBN machines — please confirm your laptop model and part number (DY512 / NM-B191, 5B20N00278) before purchase.