StarTech.com 40GBASE-LR4 MSA Compliant QSFP+ Module - LC Connector - Fiber QSFP+ Transceiver - Lifetime Warranty - 40 Gbps - Max. Transfer Distance 10 km (6.2 mi) - 40GBASE-SR4 fiber transceiver adds reliable 40Gb over fiber

$1721.99/each

$1721.99/each