G.Skill 16GB (2 x 8G) Ripjaws Series DDR4 PC4-17000 2133MHz Laptop Memory Model F4-2133C15D-16GRS Capacity 16GB (2 x 8G), Type 260-Pin DDR4 SO-DIMM, Speed DDR4 2133 (PC4 17000), Cas Latency 15, Timing 15-15-15-36, Voltage 1.2V, ECC No, Buffered/Registered Unbuffered, Multi-channel Kit Dual Channel Kit, Heat Spreader No