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Warranty Period

   We privode 5 years warranty to customers with grade A chipsets, and one year warranty with UDP chipsets, All usb products from YOUSAN company will be tested 3 times before shipment, so the defective rate is very very small. Besides, we provide 3‰ spare products for every order free of charge.  Warranty conditions: Extra charge conditions:

How do i provide the warranty to customers?

 You had better check wheather the pakaing is complete when you receive the order,we usually package the usb goods very pefect after finished this order,when you find the pakaging that was broken,we suggest that you check the quantity,if you find the product have problems or the number is not enough,you can tell us the problem number or the lack of the number,we will sent to you next order.
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