■ Can be configured with a single FPGA
Arria GX, Arria II GX, Stratix GX, Stratix II GX, Stratix IV GX, Stratix V GS, Stratix V GX, Stratix V GT, Cyclone IV GX

Configurable using an external PHY chip
Cyclone II, Cyclone III, Cyclone IV, Stratix II, Stratix III, Stratix IV, Stratix VE

Please also check the PCI Express Compiler User Guide, as the number of lanes, functions and timing information supported by the device may not be finalized.

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_pci_express.pdf