The back comes with a firewire cable (so you can use it tethered with LiveView), 2 camera cables, 4 batteries (some quite old), sensor and LCD covers, and a battery charger. Software (Leaf Capture) is downloadable for free.
It has the current firmware revision v4.7 and has 37682 activations. These backs have only one moving part (the fan) and do not get worn out by using them. I have owned it for the past two years and I am an amateur photographer who has never used it for commercial purposes. The back has no scratches or marks and everything works perfectly.
Firmware revisions are installed by users when upgrading to new versions of Leaf Capture software which are issued free of charge.
Sending the back to Spain is not a problem. I can get a price and will let you know. I appreciate your interest.
Roger