Placa base para portátil Lenovo Ideapad 520-15IKB, 5B20Q15626, con CPU de I7-8550U, 4GB de RAM, MX150, 2GB, GPU, NM-B452, DDR4, MB, 100% probada - AliExpress
OFFTEK 16GB Replacement Memory RAM Upgrade for IBM-Lenovo IdeaPad 520-15IKB (DDR4-19200) Laptop Memory at Amazon.com