ATTO Technology Celerity FC-164P Quad-Channel 16 Gb/s Gen 6 Fibre Channel PCIe 3.0 Host Bus Adapter with SFF+s

Bus Mastering eliminates the need for communicating with the host CPU of your device by transferring data directly between the HBA and the system memory. Doing this relieves the CPU from the burden of managing protocol activities and increases system bandwidth for other applications.
Tagged Command Queuing allows for multiple I/O commands to be processed in any order, improving overall performance of read and write requests to hard drives.
Disconnect/Reconnect is a feature that increases bus performance by eliminating wait times between the HBA and other devices. This can enable dynamic sharing of the bus bandwidth in sophisticated environments.
Advanced algorithms are implemented to provide optimized performance for workgroup applications such as digital content creation, rich media, prepress, and databases.