This product is either discontinued or we cannot get that from suppliers.
Kingston KVR29S21S8/16BK SODIMM Memory, Capacity 16GB, Unbuffered, Non-ECC, Speed 2933 megahertz, Supply Voltage 1.2 volt, CAS Latency 21.
Kingston 16gb 2933mhz Ddr4 Non-ecc Cl21 Sodimm 1r (KVR29S21S8/16BK).