This H3C SFP-XG-LX-SM1310-D is a high performance and cost effective SFP+ transceiver module supporting data-rate of 10.3125Gbps (10GBASE-LR) or 9.953Gbps (10GBASE-LW) over single mode optical fiber. The SFP+ transceiver module fully complies with SFP+ Multi-Source Agreement (MSA) standards SFF-8431, SFF-8432 and IEEE 802.3ae 10GBASE-LR/LW. Additionally, this SFP+ transceiver module also provides a unique enhanced digital diagnostic monitoring interface(DDMI) per SFF-8472, which providing real-time monitoring of the transceiver optics temperature, laser bias current, optical power, received optical power and transceiver optics supply voltage. The transceiver is a Class 1 laser product complies with FDA/CDRH and IEC-60825 standards.