Connect Macbook Air with external monitor I have a MacBook Air (13-inch, Mid 2013) that uses an Intel HD Graphics 5000. I also plan to buy the monitor that is supposed to have connectors for DisplayPort and HDMI with a resolution of 2560x1440 Pixel.

I would like to make sure that I can make use of the monitor's resolution with my Macbook Air.

If this is possible what cable do I need for that ?

P.S.: The monitor comes with two cables, DP and HDMI, so my guess would be I'd need an adapter. Yet this does not answer the question of the desired resolution. If you need more specific information please comment/ask below.
A quick google showed me that this MacBook supports:


  Dual display and video mirroring: Simultaneously supports full native
  resolution on the built-in display and up to 2560 by 1600 pixels on an
  external display, both at millions of colors


So, yes it looks like the Macbook will support the full resolution of your monitor.