The USB3 standard has throughput at up to 500MB/s, so the cards or the computer should be the limiting factor.
The Lexar 1000x cards should transfer at around 100MB/s, so 2GB should take around 20 secs.
The 400x cards should transfer at around 40MB/s, so 2GB should take around 50 secs - which means the built-in SD reader in your laptop is near the max transfer speed.
Sep 08, 2012 at 08:28 PM
Previous versions of surf monkey's message #10945810 « 1000X CF vs. 400X SDHC »
