no usb port on mac air

Welcome to the Apple Support Communities.

All modern computers, not just Mac computers, use primarily USB-C or Thunderbolt. You'll need this simple adapter: USB-C to USB Adapter - Apple.

Jack

justindave wrote:

Just returned my new mac air because there is no USB port on it. Made all my other devices obsolete.

Sorry Apple - you just converted me to a PC guy again.

All Macs I know of have at least 1 USB port. What Mac does not?

FWIW, the USB-C ports on the MacBook Air support (with adapters):

Thunderbolt 1/2

USB2, USB 3.1 gen 1, USB 3.1 gen 2, USB 3.2 Gen1, USB 3.2 gen 2

With out adapters it supports all the above USB if the device uses a USB-C cable plus USB 4 and Thunderbolt 3.

So none of your devices are obsolete!

New MBA only has USB-C ports. You need a USB-A to USB-C adapter or a hub to use older hardware.