Thread: USB Transfer speed <1MB/s

Originally Posted by 555

I wonder is this normal to have write speed of less than 1MB/s to either internal memory or microsd when connected trough device USB cable.

All Garmin unit have limit for a USB transfer rate based on electronic component of the device. Partly it is given in SW. Oldies remember SW for Nuvi 3790 with transfer rate to SD on 50Kb/s!!!
So it is normally. All developer program may to set this limit to avoid of data losses.