Adaptors

Mini-DP / Thunderbolt to VGA

works for connecting most mac laptops to a projector

Mini-DP /Thunderbolt are the video ports on usually found on mac laptops with silver colored cases, both macbook pro and macbook air.

30 Pin to VGA

works for connecting older iPads and iPhones (iPhone 4 or older) to a projector

30 Pin Connectors are the wide flat plugs that are used to connect older iPads and iPhones to a computer or charger.

Lightning  to VGA

works for connecting newer iPhones (iPhone 5 and up) and iPad mini to a projector

Lightning connectors are the newer small flat plugs that are used to connect iPad minis and newer iPhones to a computer or charger.

USB C to  VGA

works for connecting some very new laptops to a projector

This is a very new form of USB connector

DP to VGA

works for connecting old mac laptops to a projector

DP are the video ports usually found on mac laptops with the white plastic cases.

HDMI to  VGA

works for connecting  windows laptops  and very new macbooks with HDMI ports to a projector.

mini HDMI to VGA

Windows Display Port to HDMI

works for connecting a windows laptop with a windows display port to an HDMI port (a windows display port is very similar to an HDMI port but is has one flat and one rounded side where the HDMI port has two rounded sides.)