40GBASE-LR4 fiber transceiver adds reliable 40Gb over fiber - StarTech.com lifetime warranty on all StarTech.com SFP modules - Maximum Transfer Distance of 150 m (492 ft) - QSFP+ transceiver module complies with MSA industry standards - MPO fiber SFP has a low power consumption of < 0.7 W - Fiber QSFP+ module uses a cost-effective cabling alternative to fiber - Hot swappable with fiber optic modules - MTBF: 1 489 426 hours