Corsair Vengeance LPX Black 16GB DDR4 DRAM 2666MHz C16 Memory Kit - 16 GB (2 x 8 GB) - DDR4 SDRAM - 2666 MHz - DDR4-2666/PC4-21300 - 1.20 V - CL16 - Unbuffered - 288-pin - DIMM. (CMK16GX4M2A2666C16)