Thank you for posting in Wired Communities. You can contact our authorized resellers which can be found at http://locate.intel.com to check for the price and product availability. Please ensure the network card has Yottamark label when purchase, this label allows you to authenticate the network card. Here is the website for you to refer to about Yottamark label.
You can also refer to the website below for the recommended pricing, however the price provided here is for your reference only as the price may vary and is not a formal pricing offer from Intel (Please read the special note about Recommended Customer Price)
Hope the above information helps.