laptop - What RAM should I put in my Lenovo Z500? - Hardware Recommendations Stack Exchange
tecmac 16GB (2X8GB) DDR3 12800 1600MHz Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Ideapad Z500 Series Notebook - A7 : Buy Online at Best Price in KSA - Souq is
Lenovo IdeaPad Z500 (5931) - full specs, details and review
Memory for a Lenovo - IdeaPad Z500 - Kingston Technology