This product is either discontinued or we cannot get that from suppliers.
Kingston KVR26S19D8/16BK SODIMM Memory, Capacity 16GB, Data Transfer Rate 2666MHz, 260 Pin, Bus PC-21300, Non-ECC, CL19, Voltage 1.2.
Kingston 16gb 2666mhz Ddr4 Non-ecc Cl19 Sodimm 2r (KVR26S19D8/16BK).