Duo V1, no Gbit

Regarding lack of info, sorry, but i'm fairly new at Nas'in.

Speeds been tested via FTP.
Speeds been tested using drag n' drop.

The above has been done from Nas to PC, and from PC to Nas, and the speeds I get is those I mentioned earlier.
My Router is an Netgear Rangemax WNR3500L.

Are you able to try a different protocol e.g. CIFS and see what numbers you get.

Are you using Jumbo Frames?

I'm gonna sound like a total noob now, but CIFS, how do I use that, adn what is it? and yes, i'm the greenhorn at this.
Jumbo Frames is not enable, and I don't have knowledge of what it is besides what it say under the description.

ps. bare with me please.

Are you using Windows/Mac/Linux?

If using Windows go to e.g. \\ip.address.of.nas

Ohh, another missing info from me, I'm on Windows 7 64bit, and when I go to the Nas like that, I copy a file, and paste into a location on Windows, and get the same speeds as mentioned earlier, or did you mean something else?

Your screenshot seems to suggest that there is one disk installed.

Can you post a screenshot of Volumes > Volume Settings in Frontview?

This was taken earlier before I changed disks:
http://i.imgur.com/OMPKy.png
which also had the "slow" speeds as mentioned earlier.

An old screenshot like that is useless.

What firmware did you last do a factory reset on?

Same as the one in the first screenshot, nothing has changed, 4.1.10.

Can you post an up to date screenshot of the Volumes page?