Hi, A few months ago I bought an EMULEX databook titled "DISK AND TAPE PRODUCTS HANDBOOK". I found a quite interesting product named UC01. It is a SCSI controller which can emulate two RLV11/RLV12's with 22bit addressing. It means that you can mimic eight RL02 drives with a crisp ZIP drive! Thus you can enjoy various versions of unix (modified v7, 2.9BSD, 2.11BSD a bit harsh? and maybe even modified v6) without huge cabinets. UC01 seems quite hard to find and expensive if available. EZSystems(http://www.ezsystems.com/) has stocks, $345 each. I want to know if it actually works well with my PDP-11/53 before I try it. Has anyone experience with UC01? Naoki Hamada nao(a)tom-yam.or.jp