BM5866 (5B20T45112) Notebook Motherboard for 300e 2nd Gen — CPU N4100, B81M9, UMA, 4G, 64G eMMC

Replacement motherboard compatible with 300e 2nd Gen notebooks, identified as BM5866 / 5B20T45112. Fitted with an N4100 CPU and B81M9 chipset, it uses UMA integrated graphics and includes 4G memory alongside 64GEMMC storage. Ideal for repairing or restoring 300e 2nd Gen systems requiring these exact specifications.