These hard disk good but Warranty certificate and one other document in the product carton are in Chinese. No English translation. Leaves customer in total darkness about his obligations. Manufacturer can put onus on customer if a dispute arises in future.
Can not even fathom if product needs registration to avail warranty. Went to Lenovo site but it lists all Lenovo products except portable hard disks. Unable to register my purchase. Whole deal looks very suspicious. Better to keep away from such products till Lenovo, seller or Amazon clarify the matter.