RealSea’s 40Gb/s QSFP+ Active Optical Cable is a 4-channel active optical cable for 40G Ethernet applications that is designed to meet the QSFP+ 10Gbps 4X Pluggable Transceiver SFF-8436 specification. This full-duplex optical assembly offers 4 independent transmit and receive channels, each capable of 10Gbps operation for an aggregate bandwidth of 40Gbps. The cables use the standard multimode fiber cable carrying a nominal wavelength of 850nm. The electrical interface uses a standard 38 contact edge type connector and is electrically compliant with the SFI+ and PPI interface supporting Infiniband, Ethernet, Fiber Channel. The connector is hot pluggable and provides I2C serials access via an on-board microcontroller. QSFP+ AOC can be used as a direct replacement for traditional copper cables with the added benefit of a lighter weight and smaller diameter solution for cable lengths from 1 to 100 meters.