Among the many advantages of PCIe is that the PCIe bus can be transmitted over a cable to another device and it has some of the fastest speeds and lowest latency of cable connections. Gen3 x16 operates at speeds up to 128Gb/s. The CUBE2 can also connect to a Thunderbolt-enabled computer through a Thunderbolt cable. Compared to Thunderbolt 1, Thunderbolt 2 doubles the speed of the data path to 20Gb/s and increases the bandwidth of the Display Port to 20 Gb/s. The Thunderbolt 2 Option Card installs in the CUBE chassis and converts the Thunderbolt bus from the computer to PCIe.