This Team Elite 4GB DDR4 2666MHZ Laptop RAM Brand. Memory Type DDR4 Memory Capacity 4GB, Bus Speed 2600MHz, Memory Pin 260-Pin, Tested Voltage 1.2V it can save electricity use by 20 compared to its last generation. Thus, the heat generated from the product itself can also be reduced and maintain the girding temperature of the system. It's 100 compatible with INTEL's rearmost X99 & Skylake chipset. With named high-quality IC chips and strict testing standard, it's the perfect choice for laptop druggies, who seek excellent quality, optimal performance, stability, and comity. Continuance Bond. this product Lifetime warranty.