POTONG Networking Technologies Co. Ltd is focused on design, manufacture and market optical transceivers products which are wildly used in Data Network, Telecom and Indurstry control etc. The transceivers are GBIC,SFP,SFF,X2,XFP,XENPAK,CWDM,DWDM,Fiber Channel,1x9 etc.  POTONG Networking Technologies provide worldwide customers a total solution , the top quality products, fast access to vital information, prompt responses to inquiries, quick delivery, competitive pricing, and an unparalleled level of customer service, and customermized Logo . All Potong's products are guaranteed to be 100% compatible with CISCO,  HP, JUNIPER etc. and all products are covered 3 year warranty and free technical support.