PNY Performance 8GB 2400MHz DDR4 C17 SO-DIMM Notebook Memory Black MN8GSD42400 - Best Buy
Can I mix both DDR4 RAM from different brands and both of them will work together in a dual channel mode, e.g., G.Skill Aegis 8GB 2666 with a Kingston HyperX Fury 8GB
HyperX Fury 8GB 2666MHz DDR4 CL16 DIMM 1Rx8 Black XMP Desktop Memory Single Stick HX426C16FB3/8 at Amazon.com
Crucial 8GB DDR4-2400 SODIMM Memory for Mac | CT8G4S24AM | Crucial.com