I'm considering buying a wireless NAS for backup, but am concerned by what some consider to be unreasonably slow transfer speeds. I'm non-tech and struggle to understand much of this stuff, so hopefully I can explain this well enough. If I've understood things correctly, even though wireless (300Mbps) will only transfer at approx two-thirds of USB2 (480Mbps), the likely rate is 30 MB/sec and so a 1gb file should transfer in approx 30 seconds plus some extra time for the drives to handle things - a total of maybe approx 45-60 seconds. So, from a practical viewpoint, the slower transfer doesn't seem to be a big problem. Or have I gotten this completely wrong?