Welcome to the Dell Community @xMcGrey 

I like Samsung and SKhynix.

Just remember that matching pairs are best.

Inspiron 14 7000 Setup and Specifications:

https://www.dell.com/support/manuals/us/en/19/inspiron-14-7460-laptop/insp-14-7460-setupandspecs/memory?guid=guid-534fb5d6-dd44-44fe-8519-8876f200abb6&lang=en-us

Best regards,

U2

thank you. Just to confirm, can I upgrade into 2666mhz right? or just a 2400mgz?

@xMcGrey 

Crucial is selling the 2666MHz so I would say yes.

https://www.crucial.com/compatible-upgrade-for/dell/inspiron-14-%287460%29

Regards,

U2