We found that the 16GB version delivered better throughput (roughly 11 MB/s maximum difference) and was the second best in our sequential read test. The performance difference between the two cards was smaller on sequential writes.
Both deliver average I/O performance results, as they were clearly optimized for maximum throughput rather than I/O capabilities.
Transcend provides a lifetime or 30-year warranty. All other product information from Transcend is rather general.