Newegg is currently out of stock and they don't have it anywhere on tigerdirect. It could be months before they have them back in stock.

I'm building a new PC and I have the MSI big bang mpower Z77 motherboard. I read that this memory kit was designed specifically for my mobo.

Is there any other place where I can order this particular memory kit online?

It must be from a trusted and reputable website.

http://www.newegg.com/Product/Product.aspx?Item=9SIA0ST0DV4427