Can I Use PXIe-8301 With Thunderbolt 4 or 5?

Issue Details

Solution

Thunderbolt™ technology is a cable connection interface developed by Intel over the last decade and Thunderbolt 4 and 5 is are newer Thunderbolt™ protocols, than the PXIe-8301.
If the device supports Thunderbolt 3, it'll support Thunderbolt 4 as well, because the latter is backward compatible with Thunderbolt 3 and they also have the same connector. However, there is an exception to this rule. Systems that use a Maple Ridge based internal controller with Thunderbolt™ 4 ports aren't compatible with the PXIe-8301. 

Likewise, due to the PXIe-8301's compatibility with PICMG CompactPCI Express EXP.0 R2.0, the data transmission is done differently as compared to the Thunderbolt™ 5 protocol. Thus, a PXIe-8301 is not compatible with a Thunderbolt™ 5 cable.

Additional Information

Thunderbolt™ 4 ports have the same high-speed 40Gbps bidirectional bandwidth as Thunderbolt™ 3. However, minimum PCIe data requirements have increased from 16 Gps to 32 Gps. This means a significant increase in transfer rates and performance. Moreover, it has a power delivery up to 100W.

Thunderbolt™ 5 is backwards compatible and can transmit Thunderbolt™ 3 and Thunderbolt™ 4 protocols, however the PXIe-8301 needs data to comply with PICMG CompactPCI Express EXP.0 R2.0.  This does not happens in the Thunderbolt™ 5 protocol and that is the reason why the PXIe-8301 does not recognizes data from Thunderbolt™ 5 protocol and fails to establish a link through those cables.