This product is either discontinued or we cannot get that from suppliers.
QNAP RAM-32GDR4ECT0-RD-2133, 32GB, 288 Pin, PC-17000, Registered ECC, 0.93ns, CL15, Data Transfer Rate 2133Mhz, Memory Clock 266Mhz, Rank 2, 1.2.
Qnap 32GB DDR4 ECC Ram2133MHZlR-DIMM For Network Storage (RAM-32GDR4ECT0-RD-2133)