Used a Amazon gift card I received on my birthday to pay for this! I went with the 16GB variant on my Legion 7i 11980HK and RTX 3080 because I've read Lenovos
Kingston 16GB Memory Module (KCP424ND8/16) DDR4 2400MHz RAM at Amazon.com
Kingston 16GB DDR4 SDRAM Memory Module at Amazon.com
A-Tech 4GB RAM Replacement for Kingston HP16D3LS1KBG/4G | DDR3/DDR3L 1600MHz PC3L-12800 1Rx8 1.35V SODIMM 204-Pin Memory Module at Amazon.com