No matter what proportion we expect that we tend to square measure associate knowledgeable in victimisation and understanding our laptops. have you ever ever questioned what's that mini-slot besides USB port? This tiny spot could be placed on right or left facet of USB port. you want to be questioning that this hole is to insert the air or expel the heal, however you're wrong. Well, you will have to scan the full post to find the rationale behind that little spot in a very portable computer. Scroll right down to see! Let's discover out and conjointly see the complete descriptive video within the finish.