You can but it will run at 2400. The Crucial page here lists 2666 RAM that is compatible  but will run at the proper 2400 speed. And Crucial RAM is the most compatible for Dell systems.
Hello everyone, i have a Dell Inspiron 7567 Gaming (i7-7700hq and 1050ti variant) i want to upgrade my RAM but the dell page says i can only use 2400mhz frecuency, but its hard to find 32gig kits (16*2), can i use 2600 or other to upgrade? thanks in advance.
RAM UPGRADE