This Alcatel-Lucent compliant SFP-GIG-LH40 is a 1000BASE-LH SFP 1310nm 40km transceiver module. The SFP-GIG-LH40 transceiver module provides a low cost high-performance connection. The SFP-GIG-LH40 is 100% compatible with all Alcatel-Lucent series equipment which support SFP transceivers.