CMS 16GB (2X8GB) DDR3 12800 1600MHz Non ECC SODIMM Memory Ram Upgrade Compatible with HP/Compaq® Envy Desktop Touchsmart 23-D044, 23-D050Xt, 23-D051 - A7 at Amazon.com
HP Envy Business Desktop, Intel Hexa-Core i5-11400 up to 4.4GHz (Beat i7-10700), Windows 10 Pro, 16GB RAM, 512GB SSD, Type-C, WiFi, Bluetooth - Walmart.com
Seifelden 8GB (2X4GB) Memory RAM for HP Envy m6-1125dx Laptop Memory Upgrade - Walmart.com
Inside HP Envy x360 15 (2021, 15-eu0000) - disassembly and upgrade options | LaptopMedia.com