2666MHz SoDIMM - 260 Pin. Samsung & SK Hynix. Each Stick of ram is 8 GB Each of which you will receive two sticks of ram.
Samsung 16GB DDR4 2666 MHz PC4-21300 2Rx8 Laptop RAM Module M471A2K43DB1-CTD
SK Hynix 16GB DDR4 2666 MHz PC4-21300 2Rx8 Laptop RAM Module HMA82GS6DJR8N-VK
RAMAXEL 16GB (1x16GB) 2666 MHz PC4-21300 DDR4 Laptop RAM RMSA3300ME78HBF-2666
Corsair CMSX16GX4M2A2666C18 Vengeance 16 GB (2 x 8 GB) DDR4 2666 MHz 204 Pin SODIMM Performance Notebook Memory Kit - Black
Crucial 32GB (2x16GB) DDR4-2666 MHz PC4-21300 SO-DIMM Laptop Memory Kit
Samsung 8GB DDR4 2666 MHz PC4-21300 1Rx8 Laptop RAM Module M471A1K43CB1-CTD