There has been data ("Professional Kingston Ultra 64GB MicroSDXC for your Canon EOS 50D card is Custom Formatted for digital high speed, lossless recording! Includes Standard SD Adapter. (UHS-1 Class 10 Certified 30MB+/sec)") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Tue Feb 25 12:15:02 2020, so the data displayed here has been removed .