Jeton Orin Nano/NX PCIE0 x4 lane connected together？

[jasperni]

Hi NV，

Is there possible that two Orin Nano or two Orin NX connected together by PCIE0 x4 lane(one as RP, and the other as EP)?

Jasper
20250324

[sgursal]

Yes, both Root Port and End Point mode is supported in PCIe x4 port interface.

[sgursal]

Although the PCIe endpoint app note and PCIe endpoint software link below is for Xavier it should help provide further guidance on PCIe endpoint support and connection of two Jetson modules/carrier boards in generalJetson Download Center | NVIDIA Developer

[jasperni]

thanks！

BTW， if two Orin Nano/NX combo together by PCIE0 x4 lane, then SSD (let’s say x2 lane) will only be populated to PCIE2 port, is that right?

BTW2, is there custom carrier board design with above situation?

Jasper
20250326

[sgursal]

In Table 7-4 you have Option #1 and Option #2, any one which meets your requirements could be used. In Table 7-3 PCIe x1 (C1), RP is also available for use if you need it, again you could choose Option #1, Option #2 or Option #3 based on your design needs.

[sgursal]

Not aware of any custom carrier board for above situation.