Precision 7960 Rack

I've recently bought a Rack Precision 7960 which came with an NVIDIA RTX 4000 (Ada Generation). This GPU has a "CEM5 16-pin" connector. The GPU connects with the Riser and PS with an MD9J9.

This is the question I have. I want to replace the RTX 4000 with a RTX A4000, but this GPU has a "PCIe 6-pin" connector. Which cable P/N do I need to buy to install this new GPU?

Regards.