If you have a newer laptop, you very well might not have the VGA (Video Graphics Array) connection that most projectors require in your typical office conference room. The solution is this $10 HDMI-to-VGA adapter, available at Amazon and other online retailers. But check your laptop carefully to find out exactly the type of A/V (Audio/Video) output it has. Besides HDMI there is DisplayPort, Mini-DisplayPort, Thunderbolt and others. But somebody will make an adapter to get you back to VGA.