Ok, I need to vent. I have purchased TWO PROPLUS2's, one for myself and one for my wife. I also spent an EXTRA $100.00 for the USB interface cable.....I can not believe that with all of the technology that goes into the dive computer that this piece of junk cable and connection system is the best that they could come up with. I can not get it to "sync" or handshake up with either of the computers. I am ready to throw the stupid cable out the window. The three prongs that are spring loaded to push up against the terminals in the DC are going in three differen't directions, the middle one retracts into the housing and doesn't pop back out.....argh. I am definately going to look for a new computer that has the wireless data transer capabilities. I am yes aware that there are several posts on this topic....I only wish I had seen them before making this purchase.