13 Replies Latest reply: Oct 10, 2013 7:28 PM by hands4
Williamvv Level 1 (5 points)

My new Air/Thunderbolt system is fabulous but I just noticed that USB transfer rates through the Thunderbolt Display are much slower!


Here are my results using the same USB disk drive, same USB cable, same file, same copy command (see * below):

USB thru Thunderbolt Display USB port:    ~0.5 GB / minute

USB thru MacBook Air             USB port:    ~2.0 GB / minute


Anyone else able to reproduce this on a MacBook Air with Thunderbolt Display?  If not, I'll need to swap mine.


I stipulate that firewire and thunderbolt are faster than USB.  But some devices require USB.  What I'm noticing is that at one of the USB ports on the back of my Thunderbolt display is running at about 1/4 the speed of the USB port which is built in to my MacBook Air.


Has anyone from Apple checked this?


Thanks a lot!



*My copy command takes less than 2 minutes if the USB cable is plugged into the MacBook Air, and takes 7 minutes if the USB cable is plugged into the Thunderbolt Display.

MacBook Air, Mac OS X (10.7.2), Thunderbolt Display