Guangzhou TOPUN Computer Co., Ltd. Established in 1990, we take pride in our ability to offer buyers across Europe, South America, the Middle East, and Africa with our market driven computer peripheral solutions, engaging in developing, designing, manufacturing and selling complete range of products from cases, switching power supplies, keyboards, mouses to other computer peripherals. TOPUN, an ISO9001:2000 passed incorporation, has over 1500 employee with around 50,000 square meters for designing, engineering, and production with the volume of 2.3 million annually. The raw material we use come from carefully selected suppliers, ensuring that finished goods are up to our strict standards. For more product information, contact us today.