Our Vision-Create Topstar's home and strive to be a respected Century Enterprise!Our Mission-Better Communication, Better World !Our Values--Fighting happily,be honesty and gratitude,be progressive and achieve others;1 Established in 2006,more than 17 years experiences in the field of optical transceiver .2 More than 20% year-on -year growth in sales during the past 17 years.3 Excellent track records with 17 years continuously no single major quality problem4 500+ customers installed based globally including major operators.Top-Trans transceivers have well used in China Telecom/ Dubai Telecom/Mongolia Telecom/Nepal Operator/China Telecommunication backbone network projects /South American data centre, EXFO worldwide optical test solutions etc. and build a long-term cooperation relationship.5 We has strategic cooperation with Google /Facebook/Amazon etc regarding upgrade data center hardware, we supply original Finisar/ Brocade/Arista /Mellanox etc transceivers Brocade/EMC/Hitachi SAN Switch, and some Mellanox/Qlogic network cards; Respect intellectual property, 17 years of non- counterfeit goods complaints;6 Stocks holds more than 200,000 transceivers at any one time for immediate delivery. Shenzhen sales center ,Shenzhen OEM/ODM factory ,Shenzhen warehouse ,HK warehouse ,USA San Francisco branch to support fast service and shipment .7 Factory Strength--20+ R&D Professional Engineer Team, 5000 square meters factory including more than 200 workers; Specialized in developing and producing the most Hi-tech products like: 25G SFP28/ 40G QSFP+/ 50G QSFP28/100G CFP/CFP2/CFP4/QSFP28/200G QSFP DD/400G QSFP-DD. Every month sales quantity more than 30,000 pcs .8 We provide OEM/OEM services, let your brand reach every corner of the world!9 Sales team's real-time 24 hours customer service to ensure that your demands are responded quickly!