This product is either discontinued or we cannot get that from suppliers.
Kingston KVR21R15S4/8I, 8GB, 1 Module, Speed 2133MHz (PC4-17000), ECC Registered, CAS Latency 15, Form Factor DDR4, 1R (Single Rank), 288 Pin, 1.2v.
This document describes ValueRAM's KVR21R15S4/8I is a 1G x 72-bit (8GB) DDR4-2133 CL15 SDRAM (Synchronous DRAM) registered w/ parity, 1Rx4, ECC, Intel® Compatibility Tested, memory module, based on eighteen 1G x 4-bit FBGA components.