Established in 2001, Shenzhen Zhongtiancheng Technology Co., Ltd. is an IT new high-tech enterprise incorporating researching and developing, producing, selling into an organic whole, the professional manufacturer of the electronic digital products, including the USB network cards, USB card readers and USB Bluetooth products. "Zhongtiancheng" always provides Better Quality, Competitive Prices, Excellent Service and Fast Shipping to all customers. We try our best effort to meet all of customer's requirements. From initial Inspection of in coming components and materials, through to checking of semifinished products during the manufacturing process, all stages are strictly monitored. Final inspections are then conducted both in the warehouse. The products have received the ISO9001 certificate, and meet the international safety and quality standard of FCC, CSA, CE, UL, JIS, and EMC. Our wide range of products is marketed through channels in the North America, Europe, South East Asia, Au