This item came with a defective hard drive.  Initially I requested a full refund however I realized that I need the Tower so I have kept the tower and inserted a separate hard drive.  I have the defective hard drive but I cannot make contact with anyone to inform whether the supplier will refund the cost of the hard drive which I can return for the refund.  I cannot return the entire item as I need to use the tower only.  What a bummer having to source another hard drive... sigh