At this time:
There are UHS-1 "SDHC compatible" cards that claim read speeds of 90MB/s but you need custom hardware to get speeds above normal SDHC.
25MB/s is the max write speed for SDHC.
Class 4 is the max for micro/mini SDHC.
There are some 15MB/s usb sticks http://usbspeed.nirsoft.net/usb_drive_speed_summary.html?o=11
At this time:
There are UHS-1 "SDHC compatible" cards that claim read speeds of 90MB/s but you need custom hardware to get speeds above normal SDHC.
25MB/s is the max write speed for SDHC.
Class 4 is the max for micro/mini SDHC.
There are some 15MB/s usb sticks http:// usbspeed. nirsoft. net/usb_ drive_speed_ summary. html?o= 11