100% compatibility with Cisco QSFP-40G-LR4-S guaranteed Maximum transfer distance of 10 km (6.2 mi) QSFP+ (Mini-GBIC) meets or exceeds OEM specifications QSFP+ transceiver module complies with MSA industry standards 40GBASE-LR4 fiber transceiver has low power consumption: < 2.5W Hot-swappable with other fiber optic modules Single mode connector DDM: Yes MTBF: 1,489,426 hours Max. Data Transfer Rate: 40 Gbps