Comes with the original power supply, mount to fit in to a Roland rack clamp and the full wiring harness. I've got a few Roland rack clamps here going spare, so if you need one of them too just let me know and I'll chuck one in the box for you. I always aim to pack and post the same day so you get it as quickly as possible and this will be bubble wrapped to within an inch of it's life, so it will reach you in as good a condition as it leaves me.
You're welcome to collect from the Bitterne area of Southampton instead if you'd prefer, I can be in pretty much any day or evening.