Hi Dave, the cable included with my 800XLT has a very small connector which goes into the small hole on the RHS of the front panel of the scanner, but the connector for the PC is a serial type, not USB, if your computer hasn't got a serial socket (and a lot don't these days) you need to buy one from the link DaveG supplied - I had to go this route, and asked if they'd do a reduced price for supplying a lead and the full software program. This they did, about 15 euros less than buying separately, and I think they then added a package deal to their web-site.
It's a fantastic scanner, but so complicated and so many bells and whistles, I'm still trying to get to grips with it - superbly clear audio and no background white noise when not receiving a signal.
HTH
Jon