What's the speed tested locally? Besides, if the drive is connected to USB port directly, what's the speed?
Read speed is really goood but write speed is normal actually according to my experience.

Mavis wrote

What's the speed tested locally? Besides, if the drive is connected to USB port directly, what's the speed?
Read speed is really goood but write speed is normal actually according to my experience.

Thanks for quick response.
What you mean "locally"? PC is connected directly to the LAN port of 3600 and HDD is connected directly to the USB port of 3600.
The write speed is low even the PC is connected via wifi to the router.
If the HDD is connected directly to the PC, the speed is more than 50Mbytes/s.

I've tested another computer with W7 and total commander and write speed is approx. 5000kbytes/s - this is what I expect. So it's strange for me. I'll try to do more tests and find some differencies between those 2 scenario, but now I really don't understand why it happens.

Thanks.