I wanted to post an update, I found two low profile SlimSAS to oculink cables. The .5m one is LP-2033-OCU and the 1m one is LP-1978-OCU. These are sold by Micro SATA Cables. I purchased the .5m one on Amazon, and can happily say it worked fine. The server is an Intel S2600STBR mounted in an Intel P4000 series chassis with an Intel 8 port 2.5” HD hotswap. The RAID card is the Dell H755. The hard drives were Intel 500GB NVMe drives.