How much information can the RFID tag store?
Typically, RFID tags store only a few hundred bits of data. This accommodates basic identifying information about an item. In some RFID applications, however, the size can be as large as 1MB, especially if the tag is regularly recording additional information about the item during the life of the item. The reason the size of storage is typically low-especially in supply-chain applications-is that many systems interface to extensive universal product databases providing exhaustive, up to date information about the product at any point in time.