Fixing the AKE BC398 USB3.0 sluggish performance
Recently I've got myself a ExpressCard USB 3.0 controller ( AKE BC398 USB3.0 Card) from ebay for my almost 5 years old Lenovo T400 (amazing machine, it seem to last forever). AKE BC398 ExpressCard The card only cost me around USD $12 from ebay. Installing the card was a piece of cake; just eject the plastic piece from the ExpressCard slot and slot the card in; it fit nicely. It is a 54mm type. 1st think I tried after installing the hardware is plug my USB 3 portable hard drive ( Seagate FreeAgent ) in and copy a large file (a openSUSE iso file ~4.5GB) to the computer's desktop. To my surprise, the speed was slow, I mean snail slow! Even slower then my USB 2 port ~ 10 MB/s. I unplug the portable drive and plug the drive to my USB 2.0 port and it has ~30MB/s speed, copying the same file. After trying with several trick, plug or unplug, give it an external power, driver updates, and even reformat my Seagate FreeAgent drive, but nothing seem to work. I turn to Google