G.SKILL 16GB (2 x 8GB) TridentZ Series DDR4 PC4-32000 4000MHz for Intel Z170 Platform Desktop Memory Model F4-4000C19D-16GTZ Brand G.SKILL, Series TridentZ Series, Model F4-4000C19D-16GTZ Capacity 16GB (2 x 8GB), Type 288-Pin DDR4 SDRAM, Speed DDR4 4000 (PC4 32000), Cas Latency 19, Timing 19-21-21-41, Voltage 1.35V, ECC No, Buffered/Registered Unbuffered, Multi-channel Kit Dual Channel Kit, Chipset Intel Z170 Platform, Heat Spreader Yes, Recommend Use High Performance or Gaming Memory