Modified USB Cue Cat Standard Barcode Scanner USB Cue Cat converted to Standard Barcode Scanner: Brand New! Plug and Play -- No special software driver required! Works with Windows, Mac, and Linux operating systems Reads UPC barcodes, ISBN barcodes on books, package tracking barcodes (for example, Priority Mail)  and most other 1D barcodes Does not read 2D barcodes (e.g. QR barcodes) Plugs into USB connector Barcodes enter computer as if typed on keyboard. Keyboard also continues to function as normal Has "sleep" feature -- after a period of inactivity, the light on the scanner goes out and flashed periodically. When you point the scanner at an object, it lights up again and is ready to use. Perfect for package tracking and inventory Simplifies selling books, music, and DVDs on eBay and other sites Also great for keeping track of your home book library or personal DVD & CD collections with the addition of software products like DVDProfiler, CollectorZ, Readerware, and free versions like getlibra and songstech Anywhere you can type, you can use the CueCat to enter barcode data Durable contact scanner, not point-and-shoot scanner -- no moving parts To read the barcode, just sweep the Cat's mouth across the barcode at a moderate speed and you should see the data appear wherever the cursor is blinking on your screen Not suitable for very small barcodes Print your own barcodes with free fonts available on the internet Specific formats include: UPC-A, UPC-E, EAN-13, EAN-8, 2-of-5 interleaved, CODABAR, CODE39, and CODE128 Not recommended for the very tiny barcodes found on computer hardware components and cell phones Buy more than one and save with combined shipping I do not ship outside of the U.S.