I apologize if this is the wrong place or a stupid question but I recently purchased a Rosewill 750W PSU for the PC I am building and upon un-boxing it I found that a string is sticking out from the vent. It seems to be attached to something inside the PSU and it doesn't seem like it can be easily removed. I Googled this and nothing came up so I am very confused. Is this supposed to be here? If not what should I do? Thank you in advance for any help you can provide.