I just noticed this post. I've been looking for a device like this since I bought my Oppo!!! Mind if I ask a few questions about it?
Do you ever have trouble with it, or does it work fine?
Can you just connect it via a router, or does it require a direct cable to a PC?
Do you use the multi-drive version, or the single?
To the person that asked about this...
I spent a month researching since I knew I wanted a direct-download device that also connected to the Oppo--trying everything from USB extension cables run to a regular enclosure to several hubs. I found that the USB and Oppo relationship is just very picky. This device works brilliantly (until I got it too close to a Mac and it corrupted my NTFS partitions to RAW that I'm STILL trying to fix...but that's another story...)
Solid case itself...very well made. I connect it DIRECTLY to my PC for best possible transfer speed (and USB to the Oppo 95). That's only because I don't have a gigabit router since I use the 100mb Uverse one--so adding a cheap add-on GB card to PC was my best option. I ran HDtach on it and it gave me about 50mps speed over ethernet with a 1.5TB WD Green drive installed (it was only about 10 via the 100mb router). I use the single version--may switch to the dual one since I can't add over a 2TB drive (although Oppo support said 2.5TB works). However, the dual version appears to be a bit older as it does not have e-sata (which is fastest but I currently do not use because it isn't hot-swappable like USB and requires complete disconnect to revive the PC connection--and that means Oppo power down to do). However the dual is very cheap at NewEgg now so worth a test try.
Mount the simple driver as either Read or Read/Write (can auto-mount) and it is immediately seen as a drive letter without TCP-IP complications. Plug in the USB connector to the Oppo and it automatically dismounts off the computer--unplug the USB and it picks it right back up (hear the hardware added sound in the next room). Only if you plug/unplug USB very quickly does it ever mess up releasing the connection--you don't even have to turn off the Oppo. You can't ask for more than that of the single-host device. Oh yeah...one little gripe: you do have to read a TINY lettered code off the drive to initially set it up--have a magnifying glass handy.