I got mine today.
It comes in a plain old cardboard box. Inside, there's the device, a driver CD, USB cable (about 5 inches long), warranty card and installation guide.
The latest driver is v1.3.0, which you can get here:http://www.musiland.com.cn/downloads...on_18.104.22.168.zip
The device itself is about the size of a 2.5'' hard disk.
On one side are the RCA and BNC connectors. On the other are the USB and TOSLINK ones.
I've done some testing with foobar2000 and playing some movies. It does 5.1 channel AC3 passthrough. The box also says DTS, but I haven't tested that yet.
With foobar2000, you can add it as an ASIO device. When switching between 44.1 and 96KHz files it switches the output sample rate by itself (the display on my 840C says that). I don't have any 192KHz files to try.
Also, it installs a traybar icon which opens up a simple control panel to adjust the volume. It also displays the current output sample rate.