T1-QSFP-40G-ER4 compliant to 40GBASE-ER4 of the IEEE P802. The module converts 4 inputs channels (ch) of 10Gb/s electrical data to 4 CWDM optical signals and multiplexes them into a single channel for 40Gb/s optical transmission. Digital diagnostics functions are also available. Wave Thought Tech 40GBASE QSFP+ is a portfolio of optical transceiver modules designed upon Multi-Source Agreement (MSA) of high-density and low-power 40 Gigabit Ethernet connectivity options for data center, high-performance computing networks. Click to get your 40G QSFP+ transceiver modules from nearby warehouses. 3125G data transmission of 80km over SMF.