USB Card Reader not recognized on new Mac Pro (late 2013)

My Sony USB multi-card reader (model: MRW62E), which I use for SD cards mostly, works on my MacBook Pro (Retina, Mid 2012), my new iMac, and my old Mac Pro (2009), via the USB ports, but is unrecognized entirely on my new Mac Pro (late 2013). All machines are running OS X Yosemite 10.10.2. Neither the card reader, nor the cards appear at all in FCP, image capture, apple system profiler, the desktop, or disk utility. I cannot find any drivers online addressing the issue, including Sony's website.

Perhaps an additional update for increased compatibility vis-a-vis the new Mac Pro would do the trick...