NM-A681 per Lenovo Ideapad 100-15IBD B50-50 scheda madre del computer portatile con I3-5005U I5-5200U I7-5500U CPU DIS DDR3 100% completamente testato - AliExpress
A-Tech 8GB Module for Lenovo IdeaPad 100-15IBD Laptop & Notebook Compatible DDR3/DDR3L PC3-12800 1600Mhz Memory Ram (ATMS276890B12351X1) at Amazon.com