Thank you for your response.
Yes, our product supports DDR5, however, it does not fit for RDIMM.
The PCB between DIMM and RDIMM is different.
Our current heatsink is not compatible with RDIMM.
However, we will make a sample water block for RDIMM and 6 pcs together.
Once we have the sample available, we will let you know.
Best regards!
Lily Wong