Xianmingdi Sastmd (Top Ten hdd Player Brands, Xianke Shenzhen Xianmingdi Technology)
Youqun (Top Ten hdd Player Brands, Youqun (Beijing) Technology Co., Ltd.)
Patriot Patriot (Top Ten hdd player Brands, Beijing Huaqi Information Technology Development Co., Ltd.)
Newman Neusmee (Beijing, 1996, flagship national enterprise in digital industry)
Thomson Thomson (Top Ten hdd player Brands, French Thomson Limited)
I chose the inventor of hdd player: Yidian, and bought Yidian 250 1AH and Yidian i 18 from the official direct network of Yidian, and the effect was good.