Otherwise I can't tell what it is.
Older laptops had PCMCIA and PC-CARD slots and these did not hold anything. Just a dust cover.
I have an 2011 ASUS laptop that has a plastic part that pops out of the left side like an SD card would and appears to be some type of holder for a type of memory stick. It's a little less than 3" long and 1 1/4" wide, with a depressed area that would fit an object about the size of two SD cards end to end 2 1/2" X 1 1/8" Anyone have any ideas. Just picked this up from a friend that replaces his every year and was cleaning his closet out. I have had several and never seen one of these.

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