CT2K8G3S160BM is a twin pack of 8GB DDR3L (DDR3 low voltage) 1.35V Notebook module CT8G3S160BM that operates at speeds up to 1600 MT/s and has a CL11 latency. It is dual voltage and can operate at 1.35-Volt or 1.5-Volt. 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 DDR3 SODIMM memory. Increases system performance Compatible with Mac systems Meets or exceeds Apple's own quality requirements and is Apple Certified