TINOUT China factory made 10G SFP+ CWDM 1270nm 1290nm 1310nm 1330nm 1350nm 1370nm 1390nm 1410nm, 40km SMF, DDM/DOM optical transceiver module, good price, 3year warranty, big stock, compatible with CISCO,H3C, HUAWEI,ALCATEL, JUNIPER, EXTREME etc. The product is RoHS compliant and lead-free.