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
works for connecting a mini HDMI port to a projectorWindows 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.)