NM-B391 per Lenovo Legion Y520-15IKBM scheda madre I5-7300HQ I7-7700HQ GTX1060 3G
To avoid buying mistakes and are not compatible. For Lenovo:9000XXXX or FRU. For Toshiba:V000XXXXXX or K0000XXXXXXX or A0000XXXXXXX or H0000XXXXXXX. For HP:XXXXXX-001 or XXXXXX-501 or XXXXXX-601. For Acer:MBXXXXX00X.