16GB kit consisting of 2 8GB DDR3L 1.35V Notebook module that operates at speeds up to 1866 MT/s and has a CL13 latency. It is dual voltage and can operate at 1.35V and 1.5V. It is Unbuffered and is non-ECC. It conforms to the industry standard SODIMM layout of 204 pins and is compatible with computers that take DDR3L SODIMM memory. Specifically geared towards mac systems.