Kingston 16GB DDR4 SDRAM Memory Module at Amazon.com
Upgraded laptop to 16 GB of RAM using 2 (supposedly matching, same Amazon Listing) Crucial 8 GB sticks. Computer hangs/lags when both are installed. With closer inspection I may have 2 different
parts-quick 16GB Memory Module for Dell Latitude 5420 Compatible DDR4 SODIMM 3200MHz RAM at Amazon.com