Blows my mind that no one's done a SATA connector on an accelerator yet. The standard has existed for almost a 20 years and is a much smaller connector than either IDE or SCSI. Would make a perfect fit on an accelerator card...
I catch flak for mentioning SATA when IDE-to-SATA adapters are so prevalent, SATA is more complex than IDE, the Amiga can't make full use of SATA, etc.
So, like others, I have my favorite IDE-to-SATA adapters in both 40- an 44-pin varieties which work just fine with Amiga, Solaris x86, and more.