QSFP-40GB-LR-S 40gb/s qsfp+ sr4 optical transceiver original Features 4 CWDM lanes Mux/Demux design Up to 11.1Gbps Data rate per wavelength Up to 10km transmission on SMF Electrically hot-pluggable Digital Diagnostics Monitoring Interface Compliant with QSFP+ MSA with LC connector Case operating temperature range:0C to 70C Power dissipation lt, 3.5 W Applications 40G Ethernet Data Center and LAN Products details and quality control: Pictures for reference: