OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory RAM Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac (OWC8566DDR3S8GP) at Amazon.com
Asus ZenFone 2 is the first phone with 4 GB RAM - PhoneArena
4GB 800MHz DDR2, 4GB Large Capacity DDR2 Memory Module 800MHz Fast Data Transmission RAM 240 Pin DDR2 4GB for AMD at Amazon.com
4Gb RAM installed only showing 2Gb - Microsoft Community
Raspberry Pi 4 Model B - 2 GB RAM : ID 4292 : $45.00 : Adafruit Industries, Unique & fun DIY electronics and kits
HP Compaq 6000 Pro MT Intel Core 2 Duo E8400 3.0GHz CPU 4GB RAM No HDD