Ok thanks for the information but i have a doubt regarding this specific ram because it's speed range is from 2666to 4200 Mhz.This ram's speed grade DDR4 2666V Downbin and input clock frequency 1333Mhz (0.750 ns).Yes. Fast ram is backward compatible with slower speeds.
Thank you brother for clarifying my doubt.That ram is rated to run at up to 3200 mhz. Slower speeds are always fine.
Thank you brother for helping me to decide whether to buy that ram or not.Don't worry about that i5, you should be able to get 2400mhz out of that.