sd card
when I wanted to put it an sd card my MacBook Air where should I put it?
If yours is 11-inch, there aren't any slots. A 'USB card adapter' may suffice.
"The 11-inch MacBook/Air do not have a SD slot; 13-inch MacBook/Air
starting with Late-2010 model to the 2017 model all have SD/XC slots."
An external USB-C? "Dock" such (as OWC) offers ports+slots may work.
Different years have changes; most those details may be found among facts
in everymac.com site, mactracker.ca database app, and other sources online.
Take care & good luck!🐌|🐢