I already did and pasted below is the response I got from the seller. I work daily with these and unless it ends up real cheap I will not even bother with it. I would only be going for it for the odd customer that might be desperate for a replacement. Put another way I have never had a request for one to date. Dan Date: Tue, 26 Sep 2000 20:19:17 -0500 From: Phil Slaughter &lt;orchids(a)usit.net&gt; X-Mailer: Mozilla 4.7 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: "Daniel T. Burrows" &lt;dburrows(a)netpath.net&gt; Subject: Re: Ebay Qbus SCSI #448527001 References: <000901c026af$53eb0f60$a652e780@L166> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Status: dan, it took some research, since i sold the computer with all of the documentation a couple of years ago and just came across a few "spare parts" recently, but here it is. the is a dtc 11-1 scsi board, made by dtc and compatible with the dec manufactured ones. this particular one was used to connect 2 10.5" iomega alpha 10, 10 meg removable drives to the pdp-11. some of the info i found indicated that this controller board might also work with some sasi drives, but i'm not sure about that. hope this helps. if you should want some iomega drives for your system, if you buy this adapter, then they are available at www.weirdstuff.com/html/drives.htm. thanks for your interest, phil "Daniel T. Burrows" wrote: and