The GS1 DataBar Expanded (formerly known as RSS Expanded) is a variable length, linear symbology that is encoded differently than DataBar-14.
This symbology allows up to 74 numeric or 41 alphabetic characters.
This form of DataBar can be printed at densities that can be omnidirectionally scanned. It is used to encode 14 digits of numerical data that can be used to identify GTIN for scanning in the supply chain DataBar Expanded encodes all EAN.UCC Application Identifier Element Strings.
Special compaction methods have been designed to decrease the symbol size for common Element Strings.