samsung 16gb (2x8gb) ddr4 2666mhz dimm pc4-21300 udimm non-ecc 1rx8 1.2 v cl19 288-pin desktop computer ram memory upgrade kit m378a1k43cb2-ctdM378A1K43CB2-CTD Form Factor DIMM 288 PIN Total Capacity 8GB Warranty Limited Lifetime Specs DDR4 PC4-21300, CL=19, Unbuffered, NON-ECC, DDR4-2666, 1.2V Series Samsung Speed 2666 MHz Voltage 1.2V DIMM Type Unbuffered Component for desktop PC`s Samsung DDR4 DIMMs Product Highlights Speeds start at 2133 MT/s Increase bandwidth by up to 30% Reduce power consumption by up to 40% and extend battery life Faster burst access speeds for improved sequential data throughput Optimized for next generation processors and platforms.