Ripjaws DDR4 SO-DIMM DDR4-2666 CL18-18-18 1.20V 8GB (1x8GB) G.SKILL Ripjaws DDR4 SO-DIMM kit is the ideal system upgrade and provides faster data transfer and higher energy efficiency than ever. Experience a new standard of speed with Ripjaws DDR4 SO-DIMM today! ! The memory kit will boot at the SPD speed when BIOS settings are at default. If XMP is supported, enable XMP/DOCP/A-XMP profile in the BIOS to reach up to the rated XMP overclock speed of the memory kit. For XMP-enabled memory kits, reaching the rated XMP overclock speed and system stability depends on the capability of the motherboard & CPU.