These are display samples, returned items, or have cosmetic scratch or just open box or over stocked or combine above all.  However, these units have been tested and met all the specification.  The package may or may not have the same package or same color/design.  Refurbished products come with 30 days warranty only. Very limited quantity. No discount in any kind or any Promotional deal or Distribution/Wholesale on this item.  100% Full refund will be processed immediately in case of no item available after your payment. We apology in advance if it happens.  Sorry, all sales will be final, no return. Exchange may be issued in case by case bases.