Hello ! My name is Uliya , salesmanager from OPWAYTECH , which is a specialized manufacture and suppler of the fiber optical products since year 2003 . We can supply QSFP+,XFP,X2,SFP+,XENPAK,SFP,SFF,GBIC,1X9,CWDM,DWDM, which is 100% compatible to main switches and routers equipment . And all the products have passed CE,FCC,ROHC,ISO9001 . For more information, please browse the website: www.opwaytech.com As for famous company , may be you have own suppliers and have a stable cooperation with them cooperation , but you know it is risky without alternate suppler , we hope get a chance so can become your alternate suppler in future .