StarTech - QSFP40GSR4ST - Transceiver 40Gb QSFP+ Fiber 40GBASE-SR4 QSFP40GSR4ST - StarTech - 40gb Fiber 40gbase-Sr4 Qsfp+ Cisco Qsfp-40g-Sr4 Compatible Qsfp+ $348.85 $283.62
Enterasys - 40GB-LR4-QSFP-G - Transceiver 40Gbps QSFP+ 40GBase-LR4 40GB-LR4-QSFP-G - Enterasys Networks - 40Gbps 40GBase-LR4 Single-mode Fiber 10km 1310nm Duplex LC Connector QSFP+ Transceiver Module $1,041.56 $882.68
Accortec - 40GB-LR4-QSFP-ACC - Transceiver QSFP+ 40GBase-LR4 Single-mode 40GB-LR4-QSFP-ACC - Accortec - Approved Networks 40Gbps 40GBase-LR4 Single-mode Fiber 10km 1310nm Duplex LC Connector QSFP+ Transceiver Module for Compat $2,733.05 $2,316.14
Accortec - QSFP-40GBASE-LR4-ACC - Network Transceiver 40GBase-LR4 QSFP+ QSFP-40GBASE-LR4-ACC - Accortec - 40GBase-Lr4 Taa Network Transceiver Module $1,698.67
HP - Q0E71A - QSFP+ Transceiver 40GBASE-LR4 Optical Fiber Q0E71A - HP - Nokia 40GBASE-LR4 -5/+70 QSFP+ Module For Optical Network Data Networking 1 40GBase-LR4 Network Optical FiberGigabit Ethernet 40GBase-LR4 $8,401.09 $6,830.16