Technology:DDR4 SDRAM, Speed:2666 MHz ( PC4-21300 ), Features:Dual channel, red heat spreader, Intel Extreme Memory Profiles (XMP 2.0) , unbuffered, Form Factor:DIMM 288-pin, Type:DRAM, Module Height (inch):1.65, Voltage:1.2 V, RAM Performance:SPD - 2133 MHz - 1.2 V ¦ Tested - 2666 MHz - 1.2 V - CL15 - 15-15-15-35, Data Integrity Check:Non-ECC, Latency Timings:CL15 ( 15-15-15-35 )