I know this post is old, the solution is simple. Before you order if XInray is a ”legitimate” reseller of HIKvision, when you are ready to order with the part numbers, just asl XINRAY if they can provide the serial numbers of your order to validate with HIKvision , call their support numbers and or look up their website to confirm if the serial numbers are fake or real. International or US or Any country in the world, if it is HIKvision legitimate the serial numbers will tell you the story......simple......