10Gtek's QSFP+ Active Optical Cable (AOC) QDR is a Four-Channel, Pluggable, Parallel, Fiber-Optic solution for 40 Gigabit Ethernet Applications. It is a high performance cable used for short-range, multi-lane data communication and interconnect applications. It integrates four data lanes in each direction with 40Gb aggregate bandwidth. Each lane can operates at 10.3125Gb/s. These cables also support 4x10G InfiniBand QDR applications and are backward compatible to the 4x5G IB DDR and 4x2.5G IB single IB SDR applications.