I'm selling my Phase One 4x5 Flex Adapter. It comes with a quick insert plate for a digital back with a Mamiya 645 mount. The sliding back adapter has seen light indoor use over the years and is in very good condition. I am only selling because I'm moving away from LF and selling gear to fund a "digital" upgrade. Please check out the listing here
PM me with any questions. I am located in Denmark (EU). I have a 100% rating on eBay so you can bid with confidence.