This product is either discontinued or we cannot get that from suppliers.
G.skill Single Channel Value F4-2666C19S-8GNT, 8GB, 288-Pin DDR4 SDRAM, Speed DDR4 2666 (PC4 21300), CAS Latency 19, 1.20V, Non ECC, Unbuffered.
G.SKILL DDR4 memory is designed for the ultimate experience on DDR4 platforms! It's built with quality components and tested under rigorous standards with an extensive suite of testing software to ensure maximum performance, stability and compatibility.