Gigabyte GA-X79-UD7 was a Limited Edition Motherboard, Not Available Anymore!
A report from Legit Reviews confirms that Gigabyte's flagship X79 Motherboard - GA-X79-UD7 is no longer available. The motherboard which was released last year was a limited edition and the availability of the board over at Newegg is Deactivated.
On contacting Gigabyte, The manufacture revealed that the board was a limited edition sku which has been sold out and will no longer be produced which confirms that the board is End of Life (EOL) Product. Though there should be a few pieces still laying over at some retailers or you can check out used PC hardware sections on Forums to find one if lucky.
Official Page of Gigabyte's GA-X79-UD7 here.