Hope this is just a mistake on the website.
Dlink Canada support site indicates product has been discontinued?

http://support.dlink.ca/ProductInfo.aspx?m=DGL-5500
Under "Contact support":
"This product has been discontinued.
Free support for this product will end on 12/01/2014."
Nothing about this on the US site.
http://support.dlink.com/ProductInfo.aspx?m=DGL-5500