Do You Trust Your Suppliers? Beware the Black Market

It is also prudent to inspect the shipment (packaging and content) for red flags -- unusual serial numbers or brandings, conflicting dates or unmarked components, for example. Question suppliers about any items that appear substandard, not authentic or pre-used, and don't be afraid to contact the manufacturer if questions are not answered to your satisfaction. Better safe than sorry, and the supplier that's legit shouldn't feel slighted by some simple back checking.

Above all else: Buy from suppliers authorized by the IT manufacturer. The cost of the merchandise may be higher, but the peace of mind for customer and solution provider alike will more than make up the difference.