Adamanta 16GB (2x8GB) Laptop Memory Upgrade for HP Zbook Studio G3 Mobile Workstation DDR4 2133Mhz PC4-17000 SODIMM 2Rx8 CL15 1.2v Notebook DRAM 16GB ( 8GBx2 ) 2133 Mhz Non-Parity/Non-ECC Unbuffered Memory 260 pin DDR4 Dual Rank Module. Every module is backed by a lifetime limited warranty. We always have hundreds in stock! Free technical support from our experienced technicians. Every single module is fully tested by the manufacturer. Our experienced technicians can verify if these parts will work for you.