Cable is for miniSAS HD not OCUlink.This also messed with me. ASRock support explicitly said that SATA is not supported via OCuLink on the ROMED8-2T (https://forums.servethehome.com/ind...-2t-sata-connection-problem.30838/post-285625), so I have no idea why the included that cable in the box
OCuLink is PCIe