AddOn Computer's QSFP-SR4-AO is a multi-mode transceiver is a small form factor pluggable module for bi-directional serial optical data communications. Support over to 100m reach and a maximum data rate of 4 channel 10Gbase Ethernet. A 2-wire serial interface is available to send and receive more complex control signals and to obtain digital diagnostic information. Individual channels can be addressed and unused channels can be shut down for maximum design flexibility.The QSFP-SR4-AO is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP Multi-Source Agreement (MSA).