Crucial Ballistix BL2K8G26C16S4B 2666 MHz, DDR4, DRAM, Memory Kit for Gaming Laptops, 32GB (16GB x2), CL16. Ideal for gamers and performance enthusiasts with a laptop Designed for the latest AMD and Intel platforms XMP 2.0 support for automatic overclocking, or at standard JEDEC speeds Aluminium heat sink for better thermal management PC Speed: PC4-21300 Extended hours: 16-18-18-38