can someone tell me the difference between these two:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227280
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227298
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227280
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227298