5B20S42527 per Lenovo Legion Y540-17IRH scheda madre I7-9750H I5-9300 GTX1650 4 GB
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.