Colleagues, prompt, please, why the data on the drive is written slowly?
If you believe the speed indicator recording in Ubuntu, then in the beginning of the recording speed is 5 MB/sec, and the end falls in 10 times up to 500 KB/sec.
A USB 2.0 port on the motherboard Asus M2N-MX. The picture does not change depending on the port or pendrive. In win 7 data is recorded at a speed of 10 MB/sec according to the speed indicator.