The Apple brand is provides Mac Air To Hdmi Cable. If you own a MacBook Air MacBook Pro you will need a mini DisplayPort to HDMI adapter.

This small and affordable adapter turns the tiny Thunderbolt or mini DisplayPort into a full size HDMI port that you can connect any standard HDMI cable to and then also to your HDTV.

MAC air to HDMI cable with price:

Twelve South Fermata Headphone Charging Stand
$79.95

Rain Design mStand 360
$59.95

Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter
$49.00

USB-C to USB Adapter
$19.00

USB-C Digital AV Multiport Adapter
$69.00

USB-C VGA Multiport Adapter
$69.00

USB-C to Lightning Cable (1 m)
$25.00

USB-C to Lightning Cable (2 m)
$35.00

USB-C Charge Cable (2 m)
$19.00

29W USB-C Power Adapter
$49.00

61W USB-C Power Adapter
$69.00

87W USB-C Power Adapter
$79.00

Power Adapter Extension Cable
$19.00

Apple 45W MagSafe 2 Power Adapter for MacBook Air
$79.00

Apple 60W MagSafe 2 Power Adapter (MacBook Pro with 13-inch Retina display)
$79.00

Apple 85W MagSafe 2 Power Adapter (for MacBook Pro with Retina display)
$79.00

Apple 45W MagSafe Power Adapter for MacBook Air
$79.00

Apple 60W MagSafe Power Adapter (for MacBook and 13-inch MacBook Pro)
$79.00

Apple 85W MagSafe Power Adapter (for 15- and 17-inch MacBook Pro)
$79.00

Belkin USB-C to Micro-B Charge Cable (USB 2.0)
$19.95

Belkin 2.0 USB-C to USB-B Printer Cable
$19.95

Belkin Thunderbolt 3 Cable (0.5 m)
$29.95