The Thunderbolt™ Option Card for the Apollo and Apollo 16 audio interfaces provides greater UAD plug-in instances, improved performance at higher sample rates, and reduced UAD plug-in latency versus Apollo’s standard FireWire connection. The user-installable Thunderbolt Option Card includes two Thunderbolt ports, and easily slides into the expansion bay of the Apollo. Bus power is provided to all downstream Thunderbolt devices, allowing music producers to connect peripherals in series with the Apollo interface — including hard drives, processors, and computer displays.