Mellanox active optical cables are a cost-effective solution for high bandwidth fabrics, extending the benefits of Mellanox's high-performance InfiniBand and 10 Gigabit Ethernet adapters throughout the network. Mellanox QSFP cable is an assembly of 4 full-duplex lanes, where each lane is capable of transmitting data at rates up to 10Gb/s per direction, providing an aggregated rate of 40Gb/s. In addition to meeting or exceeding IBTA and IEEE standards, Mellanox Certified cables are 100% tested on Mellanox equipment to ensure optimal signal integrity and the best end to end performance. With Mellanox cables you will experience trouble-free installation and long-term operation. MFS4R12CB-050