I have an Ideapad S1450 S145-15api, it has 4GB DDR4 2400MHz onboard and has one more free SO-DIMM slot. I wanted for another 4GB but I don't know what speed and ddr buy. Help me please, thank you
You can get almost any ddr4 2400mhz stick on the market really. I recommend a 8gb module tho because it's more future proof although 8gb in total is still fine.