Great Deals from Amazon.com : https://www.amazon.com/gp/product/B00JAN0XA0?tag=chriskressera-20
8GB Memory Upgrade for Lenovo IdeaPad Z510 Touch DDR3L 1600MHz PC3L12800 SODIMM RAM
Product Description :
Capacity 8GB
Form Factor 204 pin SODIMM
Speed PC3L-12800 1600MHz
135v Low Voltage Low Power
Halogen Free ROHS Warranty Lifetime