can't read SD card on 2016 MacBook running Sierra I have had my MacBook just a few months so I'm very much a newbie with it and the OS.

My mac has only one port that's the charging port I bought the USB adapter but when I put a thumb drive in, it doesn't show up anywhere.

I've scanned the internet for answers but haven't any luck. I have all the finder options checked. So now I don't know what else to do.
First test the thumb drive with another computer. There's a possibility that either the drive or the adapter is broken. 

Open System Report and check if anything shows up on the USB bus when you plug them in. 

It is also supposed to just show up in Finder when you plugin the drive.