RAM 1x4GB, PC4-21300, CL19-19-19, voltage: 1.2V Kingston has come to market with a new DIMM type computer RAM, which is perfect for mid-range computers used mainstream. The Kingston 4GB DDR4 2666MHz CL19 requires a free DDR4 slot to run. The memory module has a capacity of 4GB RAM. The 19 CL timing and a clock speed running at 2666MHz are some of the other selling points of this Kingston computer memory. Key Features of the Kingston 4GB DDR4 2666MHz CL19 System Memory The Kingston operating memory has a total capacity of 4GB 2666MHz system memory clock speed The RAM requires only 1.2V This Kingston memory is in the DDR4 format