RAM Corsair SO-DIMM 16GB KIT DDR3 1600MHz CL11 for Apple:High Capacity KIT Memory Module with Low Power Supply from an experienced Corsair manufacturer. They are designed for modern Apple brands with slots for SO-DIMM DDR3 memory. These are DDR3 generation modules that deliver higher frequencies than previously used modules. As a result, performance has also increased and consumption has been reduced. The timing of the modules is CL11-11-11-30 and corresponds to PC3-12800 certification, which means a 1600 MHz operating frequency. This is an excellent choice if you need to expand the memory on your Apple laptop. Especially if you require high performance, for example when programming, working with video, or playing games.Parameters and Specifications:Intended for:Apple Notebooks (Selected Models)Type:DDR3Capacity:2x 8 GBMaximum Working Frequency:1600 MHzTiming:CL11-11-11-30Certification:PC12800Power voltage:1.35 VInterface:204 pins