On 10/02/15 21:19, C.Dornig wrote: > The same test with Linux on the PI results ~550 Mbit. Hi, USB is 480Mbit/s minus protocol overhead, so I don't see how you can get 550 Mbit/s . BTW: Regarding the pps, this is much up to the sys/dev/usb/net/if_smsc.c . --HPS