The Alveo U200/U250 accelerator card implements a 16-lane PCI Express® edge connector that performs data transfers at the rate of 2.5 giga-transfers per second (GT/s) for Gen1, 5.0 GT/s for Gen2, and 8.0 GT/s for Gen3 applications. The -2 speed grade FPGA included with the cards supports up to Gen3 x16.
The detailed UltraScale+ device and PCIe pin connections for the feature described in this section are documented in the accelerator card design constraints (XDC) file. The endpoint is compliant to the v3.0 specification.