This product is either discontinued or we cannot get that from suppliers.
Hp 3TK83A, RAM Module, Standard DDR4-2666/PC4-21300, DDR4 SDRAM, 16GB, Form Factor DIMM, Speed 2666 MHz, 288-pin, Unbuffered, Thickness 120 mil.
Boost the capabilities of your HP Business Desktop PC and improve system performance and application responsiveness with low-power, high-speed DDR4 memory from HP.