G.Skill F4-2666C19S-16GIS, 16GB, 288-Pin DDR4 SDRAM, Speed DDR4 2666 (PC4 21300), CAS Latency 19, 1.20V , Non-ECC, Unbuffered, Black / Red, Non-Fan. Named after the powerful shield of Greek gods, Aegis symbolizes strength and power. This new addition of DDR4 memory to the AEGIS family of gaming memory is designed for upgraded performance.