Shenzhen Tonglian Optical Technology Co., Ltd is a production-oriented company, specializing in fiber optic equipements industry. It Located in Shenzhen, Guangdong, China mainland, the largest trading port, there is a large advantage on the shipping time and cost. We are a professional manufacturer of fiber optic equipements for last 8 years. We mainly produce SFP module, media converter, POE switch, photoelectric converter, industrial-grade switch and a series of products. We accept OEM and ODM orders. We have RoHs/UV/SGS/CE and the factory ISO9001 certificates. We can provide customers with professional services, high quality products and competitive prices.Our products sell well in the domestic and foreign markets. Our business mode is based on good faith, win by quality and serve customers.