Issue or Non-Issue?
- USB2 port reportedly “throttled back” under Boot Camp:
- I heard this from someone (a supplier I think)
- Apparently supported by a forum post: [http://www.oreillynet.com/mac/blog/2006/11/developing_for_windows_on_a_ma.html]
- Poster alleged “USB 1.1 speeds”, but those were historically only 12 Mbps [http://en.wikipedia.org/wiki/Universal_Serial_Bus]
- …BUT read on…
- My own measurements indicate there is no such issue:
- 167Mbps when transferring a 75GB file from one USB drive to another, on a MacBook Pro.
- About the same observed when repeated on a standard Windows laptop.
- What should be expected in theory?
- USB2 raw data throughput is 480 Mbps but throughput in practice is more like 300 Mbps.
- When copying disk-to-disk, additional delays may exist. Googling around, a rate of about 1GB/minute (as per my measurements) doesn’t seem that unusual.