A:AnswerThis Dell monitor model (S2421NX) only have HDMI inputs for display connectivity. My laptop has HDMI port as well so that's good. But if your Macbook doesn't have a HDMI port then you'll have to buy an adapter or dock (USB C to HDMI) for it to work. Or you can just buy a USB C to HDMI cable. They sell it on BestBuy too.
I use 2 monitors connected to my laptop, so I bought an adapter on Amazon for $16.
A:AnswerDell has several monitor models supporting the HDMI connection. Please check the HDMI version of the connecto in your laptop and choose the model accordingly.