GLsun QSFP-40G-SR4 Optical Transceiver is a four-channel, pluggable, parallel, fiber-optic QSFP+ transceiver for 40-gigabit ethernet applications. This transceiver is a high-performance module for short-range multi-lane data communication and interconnect applications. It integrates four data lanes in each direction with 40 Gbps bandwidth. One version is each lane can operate at 10.5 Gbps up to 100m using OM3 or 300m using OM4 multimode fiber, another version is each lane can operate at 10.5Gbps up to 300m using OM3 or 400m using OM4 multimode fiber. These modules are designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 38 contact edge type connector. The optical interface uses a 12 fiber MTP (MPO) connector. This module incorporates proven circuit and VCSEL technology to provide reliable long life, high performance, and consistent service. Compatible Cisco Form Factor QSFP+ Max Data Rate 10.5Gbps Wavelength 850nm Max Cable Distance 150m on OM4 MMF Connector MTP/MPO Transmitter Type VCSEL 850nm Extinction Ratio 4dB Media MMF Power Consumption < 1.5W Power Supply Voltage 3.3V Operating Case Temperature 0C to +70C (Commercial)