Increasing Ram on your Raspberry Pi with ZRAM - YouTube
How to increase the RAM on my Raspberry Pi from 1 gig to 4 - Quora
Could we get a Raspberry Pi 4 with 8GB of RAM? — LOGiCFACE
The most powerful Raspberry Pi now has 8GB of RAM - The Verge
Amazon.com: Vemico Raspberry Pi 4 Model B 4GB Set RAM 4GB Base Starter Kit with SD Card, Heatsinks, HDMI Cable, Power Supply, Black Case, Reading Card Device, Screwdriver : Everything Else
Raspberry Pi 4 B: How Much RAM Do You Really Need? | Tom's Hardware