This next generation DDR4 RAM only works with newer motherboards chipser supporting the new Intel X99 CPU socket LGA 2011. To make the most of the CPU must be provided a minimum of 4 strips. This offer of 4 strips to 4GB per clip is suitable. But do not oublez it will take a Haswell-E 400 mini and CM same price. Asrock offers CM entries range from 260 to 420. So roughly 3-400 by equipment or 1000-1100 the complete configuration. Whereby you will have a bomb thanks to larger bus speeds, although here 3000 MHz latencies somewhat larger than for DDR3 is a bit lost. Consumption decreased by 20 to 25% despite the higher frequency. In short, if you can not wait lower prices that should normally be made as is always the case, the 4x4 GB memory kit 300 is a bargain. The list price of a barrette 4GB is, even today, about 100.