CMS 32GB (2X16GB) DDR4 21300 2666MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with Lenovo® Legion Y540 (15), Y540-15IRH, Y540-15IRH-PG0, Legion Y540 (17) - D39 at Amazon.com
Amazon.com: Lenovo Legion Y540 2021 Gaming Laptop I 15.6" FHD IPS 144Hz I 9th Gen Intel 6-Core i7-9750H I 16GB DDR4 512GB SSD 1TB HDD I GeForce GTX 1660 Ti 6GB I
Restored LENOVO 81Q4CTO1WW-127 Legion Y540 17.3" 1920 x 1080 i7-9750H 2.6GHz NVIDIA GeForce RTX 2060 6GB 8GB RAM 1TB HDD + 256GB SSD Win 10 Home Black (Refurbished) - Walmart.com