[cctalk] Digital Intelligence UltraBlock-SCSI bridge to USB/FW

I was curious and had a spare benjamin for one of these from eBay, thinking it would be a handy USB to SCSI adapter for convenient imaging of old drives, as it was mentioned as one a month or two ago on the Reddits. I'd like to find a manual and hear anecdotes. Mine is a model T4, has USB 2.0 and Firewire 800, circa 2005. I was surprised to see they were made in New Berlin, WI. I don't see any mention of this model on their web site https://digitalintelligence.com/ nor any mention of "ultrablock" in my CCtalk archives. - John