http://www.topnetsystem.com/200g-qsfp56.html en http://www.topnetsystem.com/200g-qsfp56-sr4.html QSFP56 SR4 transceiver modules are designed for use in Gigabit Ethernet links on up to 70m on OM3 MMF or 100m on OM4 MMF. They are compliant with the QSFP MSA and portions of IEEE P802.3-2018. http://www.topnetsystem.com/ 2021/5/12 16:59:56 http://www.topnetsystem.com/200g-qsfp56-fr4.html 200G QSFP56 FR4 is a 4×50Gbps single mode fiber, hot pluggable optical transceiver.The 200G QSFP56 FR4 transceiver is designed for applications with a reach up to 2km and with the use of FEC. http://www.topnetsystem.com/ 2022/6/16 8:33:52