I am Chinese users, through formal channels to buy(http://item.jd.com/1399027413.html 光威(Gloway) 骁将系列256G MSATA3 SSD固态硬盘【图片 价格 品牌 报价】-京东). I suspect this is not genuine, but I have no evidence.(translate)
Thank you for the courtesy of sending the picture. This is not an Intel® product. In this case, the best option here would be to contact the place of purchase or the manufacturer directly so they can explain in details what the ES tag means.