CORSAIR 64GB (4 x 16GB) 288-Pin DDR4 SDRAM DDR4 2133 (PC4 17000) Desktop Memory Model CMK64GX4M4A2133C13 Cas Latency: 13 Voltage: 1.2V Timing: 13-15-15-28 Buffered/Registered: Unbuffered Color: Black Features: Designed for high-performance overclocking with 8-Layer PCB Designed and optimized for the latest Intel X99 and 100 Series motherboards Supports Intel XMP 2.0 Automatic Overclocking Low-profile heatspreader design