Lexar's 64GB XQD flash memory card Lexar They might not be so happy about the price for the new high-end format: a 1100X 64GB model costs $580, and a 32GB model costs $300.

Lexar is in a fairly unique position in that it manufactures every major memory card format, including Secure Digital (SD), MicroSD, CompactFlash, CFast, and XQD.

The particular model I was using was a 32GB Lexar Professional card. Lexar, to its credit, ... the rest of us are stuck with the fallible SD Card format.

Lexar's latest is backward compatible with existing SD card devices, but only to UHS-I class. As Kingston highlights, UHS-I has a maximum transfer speed up to 104 MB/s (and that's just theoretical).