A4Tech OP-620D - USB Wired

Since A4 Tech Corporation has founded in 1987, our commitment and passion have not changed . Today A4 Tech is a global leader of personal computer peripherals. A4 Tech had won many awards in recognition for our unique innovative technology. A4 Tech maintains an exceptionally strong commitment to develop , for it's within the discipline of development that yesterday's fiction becomes tomorrow's reality. We strive to identify things which, when made better, improve people's life style. A4 Tech has the latest in Optical technology, using these engines in most of the latest mouse products. A4 Tech makes many different shapes and sizes of pointing devices and ships over 25 million units per year. With high capacity manufacturing in China, A4 Tech has the ability to " build to order ". With natural beauty environment factory, A4 Tech's worker has the spirit to develop and assemble . Because the need of quality award winning product is universal, A4 Tech is worldwide. A list of international partners from distributors to system integrators, from OEM partners to ODM personalized product. A4 Tech believes that the expansion into the global market is an essential link between product and people.