Kingston have been manufacturing high quality memory ram components for computer upgrades for desktops laptops servers motherboards and more for over 25 years with a keen emphasis on total quality all memory chips are sent directly from the dram manufacturer to kingston assembly plants to minimise handling and reduce the chance of damage and this ensures kingston are involved in the total manufacturing process from start to finish this kingston kcp421ss84 4gb ddr4 2133mhz non ecc memory ra