So I connected my WD 2Tb My Book 2007 USB 2.0 drive to the 5500 and reconnected everything this evening.
I started a 30Gb data xfer from my Windows 7x32 file server to the mapped USB drive started at 6:11pm MST.
Listening to some youtube music on my Mac Book Pro OSX 10.7.5 connected on 2.4Ghz and doing some surfing while the xfer progressing. Xfer said it would take about 2.5 hours to complete being that it was that big of file xfer size and the speed of the xfer is only doing 3.75Mb max with the drive.

Still have internet access here at 7pm MST.