8GB DDR3-1333 (PC3-10600) RAM Memory Upgrade for The Dell Optiplex 990 (Genuine A-Tech Brand) at Amazon.com
Performance DDR3 1600MHz NHS Desktop Memory
ITGeek's - Difference between DDR2 and DDR3 RAM How to figure out the type of RAM in your system ? Well the question is simple and so is the answer(dont try to
DIMM - Wikipedia
Key difference between DDR4 and DDR3 RAM
RAM Types and Features | Foundation Topics | Pearson IT Certification