Corsair CMK8GX4M2A2666C16 Vengeance LPX 8GB DDR4 DRAM 2666MHz C16 Memory Kit - Black - 8 GB (2 x 4 GB) - DDR4 SDRAM - 2666 MHz - DDR4-2666/PC4-21300 - 1.20 V - Unbuffered - 288-pin - DIMM (CMK8GX4M2A2666C16)