This product is either discontinued or we cannot get that from suppliers.
Kingston KVR26N19S8/8, 8GB, 288-Pin DDR4 SDRAM, Speed DDR4 2666 (PC4 21300), CAS Latency 19, 1.20V, Non ECC, Unbuffered.
This document describes ValueRAM's KVR26N19S8/8 is a 512M x 64-bit (8GB) DDR4-2400 CL17 SDRAM (Synchronous DRAM), 1Rx16, memory module, based on four 512M x 16-bit FBGA components.