Does Jetson Orin Nano support PCIe Gen4?

Hi everyone ????

According to NVIDIA’s Jetson Orin website and the preliminary data sheet the PCIe lanes on the Orin Nano are Gen3. However, the High-Speed I/O Cluster section in the Orin Technical Reference Manual states that all PCIe controllers are Gen4. Since this TRM is referenced from all Orin modules on the Jetson Support Resources page I presume the same die with the same PCIe controllers is used across all modules/boards and at best some controllers could be disabled. Could anyone from NVIDIA’s embedded team please confirm if this is a software limitation (perhaps for power reasons)? Or do indeed all PCIe lanes on the Orin Nano support Gen4?