I thought it did but after some digging around, perhaps it does not.
I searched under Device Manager > Disk Drives > USB stick > and selected the property "Hardware Ids". When doing so, it shows the USB model, but not GUID. I went to double check by accessing my Disk Management > Selecting USB > right clicking on "Properties" > and under volumes it shows the partition style as "Master Boot Record" (MBR). A guide online said that if it had a GUID, it would show the partition style as "GUID Partition Table" (GPT). I am just following online resources, but according to this it appears like it does not have a GUID.
If it does not have a GUID, I will order another USB reader with GUID. What would be the process to transfer my unRAID key from the current USB card reader to a new one?
Are there recommended card readers for unRAID? I went this route with the hopes of creating physical copies/backups of my microSD.