Corsair CMV16GX4M1A2133C15 Value Select Series 16GB (1x16GB) DDR4 2133MHz (PC4-17000) CL15 DIMM at Amazon.com
Kimtigo DDR4 16GB Laptop Dram 2666MHz (PC4-21300) CL19 (Compatible with 2400MHz or 2133MHz) 1.2V Notebook (SODIMM) RAM Non-ECC Unbuffered Single Rank 260 Pin PC Computer Memory Module Upgrade at Amazon.com
Hynix Original 16GB (1x16GB) Laptop Memory Upgrade Compatible for HP Zbook 15u G4 Mobile Workstation DDR4 2133Mhz PC4-17000 SODIMM 2Rx8 CL15 1.2v DRAM Notebook Adamanta at Amazon.com