The Cisco compatible QSFP+ to SFP+ adapter converter module provides 10G Ethernet connectivity for QSFP+ 40G ports. This module is compliant with QSFP+ MSA SFF-8436 and SFP+ MSA SFF-8431. The built-in MCU enables I2C reading of SFP+ registers by reading QSA registers. The SFP+ receptacle is connected to lane 1 of the QSFP+ connector. The other three channels on the QSFP+ connector are not connected.