[Pre Order - allow extra time] Patriot Signature Premium 8GB DDR4 2666 MHz UDIMM Memory Module 8GB Capacity, 2666 MHz Clock Speed, PC4-21300, 288-Pin UDIMM, 1.2V, 19-19-19-43 Timings, Unbuffered, Non-ECC, Aluminum Heatshield, Plug-and-Play