DDR4 2666MHz PC4-21300 260 Pin Unbuffered Non-ECC 1.2V CL19 Dual Rank 2Rx8 based 1024x8 Power Supply: VDD=1.2V (1.14V to 1.26V) VDDQ = 1.2V (1.14V to 1.26V) Module Size:16GB Package: 1x16GB For Laptop, Not For Desktop For Selected DDR4 Laptop / Notebook PC, Mini PC, All in one Device Guaranteed Lifetime warranty from Purchase Date and Free technical support based on United States