OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac at Amazon.com
HP 15.6" Laptop, Intel Celeron N4000, 4GB RAM, 500GB HD, Windows 10 Home, Jet Black, 15-bs212wm - Walmart.com
What's the physical difference between 4 GB RAM and 8 GB RAM? What are they made of? How does it work? - Quora
Amazon.com : G-Skill Ares F3-2400C11D-8GAB 8 GB (4 GB x 2) DDR3-2400 Non-ECC Memory Modules with Low Profile Heat Spreader - Blue : Computer Internal Memory : Electronics
HP Black Desktop Computer 600B 500 GB Windows 8 OS 4 GB RAM | eBay
4GB RAM vs. 8GB RAM: What's the Difference? - History-Computer
memory - Would there be any problems if I install an 8GB RAM stick to my desktop computer which has 4GB RAM installed? - Super User
8 GB Ram installed 4 GB Usable - Microsoft Community
RAM : 4GB vs 8GB vs 16GB Test in 8 Games - YouTube