Odd mix of answers here. I have always had very good luck with all DKB stuff. I still use an '030 (40MHz I believe) with a 32 Mb simm that runs OS 3.5 with no trouble at all in my A1200. (I may upgrade to 3.9 some day) I even use the DKB SCSI with good luck (it is a pain to connected correctly, but once it is, it works well).
Good luck filtering through all this......
