Question about HP Elite E243

Thank you for your request. It depends somewhat on your MacBook Air model. If your MacBook already has a Thunderbolt 3 port, you can use this cable: Apple Mini DisplayPort part number: 363422. If you have an older model MacBook, you will need to use an adapter in between, such as: Apple Thunderbolt 3 (USB-C) to (Thunderbolt 2) item number: 5984812.

Apple Mini DisplayPort to (VGA, 20cm) ?