Sticking to the belief of "Creating products of high quality and making friends with people from all over the world", we always put the interest of customers in the first place for Sfp Bidi 20km, 10gbase-Sr , Compatible Sfp Modules , Cdr Optical Transceiver ,Switch Hub Sfp . We have been wanting ahead to setting up cooperative associations along with you. Make sure you contact us for more data. The product will supply to all over the world, such as Europe, America, Australia,Italy, Brazil,Malaysia, Angola.We look forward to hearing from you, whether you are a returning customer or a new one. We hope you will find what you are looking for here, if not, please contact us immediately. We pride ourselves on top notch customer service and response. Thank you for your business and support!