Placa base para portátil Lenovo Ideapad 330-15ARR, con R5-2500, R7, R3, CPU, 4GB-RAM,
Placa base para portátil Lenovo Ideapad 330-15ARR, NM-B681 con R3-2200 R5-2500, CPU, 4GB de RAM, DDR4 completamente probado, EG534/EG535 R7-2700 - AliExpress
Can I upgrade the RAM on my Lenovo Ideapad 330? I now have 4GB. - Quora
Lenovo IdeaPad 330 & 340 - SSD and Ram Upgrade and Replacements Guide - YouTube
How to find RAM memory upgrade for the Lenovo IdeaPad 330