ASUS VivoBook Flip 14 Thin and Light 2-in-1 Laptop, 14” HD Touch, Intel Celeron N4020, 4GB RAM, 128GB Storage,Windows 10 Home in S Mode + includes Microsoft 365 Personal 1-year, J401MA-AB02T-CA :
How to upgrade the memory on the Asus Vivobook and the Transformer Book Flip series
Asus VivoBook Flip TP301UA Disassembly and RAM, SSD Upgrade Options - Laptopmain.com
Memory RAM Upgrade for Asus VivoBook Flip S 14 OLED TN3402 8GB DDR4 SODIMM | eBay