Appreciate it. I am going down the road of a sata to sas adaptor one of the internal ports. I have spare connections on my power supply so hopefully it will all work out. Since I know now sas drives don’t work on sata ports I guess the main reason the adaptors exist is scenarios like this.

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Specs are here if you are willing to have a look! https://docs.broadcom.com/doc/12353334

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Also sounds like the external SFF-8088 is data only and I somehow need to introduce power. Looping the cable back inside won’t solve my problem?

Thanks! SAS is totally new to me and there is a bit of a learning curve…. I am confused though as the manual refers to the 4 sata ports on the card and mentions that sas or sata devices can be connected?