tak na maline ten 100M ethernet jede kolem 90Mbps, dokonce jde poridit 1000M ethernet do USB3, ten pak v maline jede kolem 200Mbps, teda dvakrat rychleji, nez onboard
http://www.midwesternmac.com/blogs/jeff-geerling/getting-gigabit-networking
takze propustnost USB ma, problem je, kdyz pouzivas zaroven eth a USB, trebas pri sitovem prenosu z/na USB disk, to pak ten USB gigabit nepomuze
(nova malina kolem 10MB/s, stara kolem 8MB/s, banan 20MB/s http://www.htpcguides.com/raspberry-pi-vs-pi-2-vs-banana-pi-pro-benchmarks/)