J4858B 1000BASE-SX
J4859B 1000BASE-LX
J4860B 1000BASE-ZX
J4858C 1000BASE-SX
J4859C 1000BASE-LX
J4860C 1000BASE-ZX

Newstar are professional provider of OEM optical communication products in China.We specialized in SFP,GBIC,SFP+,X2,XFP,XENPAK module.
Our all items with good quality, Tested through rigorous test procedure.

If you have any questions, please contact with me, we will try our best for you, thanks!
Best Wishes
Helen
Newstar Networking Technology Co., Ltd.