This is a 60cm Cannondalee Cyclocross (CX) bike, black, 2004 model year. That's pretty big, I'm about 6'3" and I like how it fits.
I bought it new and rode this bike a lot for about 10-15 years. The wheels have been replaced. The rear wheel on it now could use some new bearings but is otherwise in good condition - I don't think it's ever broken a spoke. The front wheel has low mileage. The crankset, bottom bracket, rear derailleur, chain, and cassette have all been replaced recently, though the shifters are original so it's still a 9-speed cassette. I had set this bike up as my full-time Zwift setup but ultimately decided I preferred my current road bike for Zwift.
I think this is its original listing on Cannondale's website: https://web.archive.org/web/20090422214911/http://www.cannondale.com/bikes/04/cusa/model-4XR8.html
Here is some geometry info: http://web.archive.org/web/20090412100201/http://www.cannondale.com/bikes/04/geo-9.html
I think the killer use of this bike these days is for commuting or touring. It's nice enough to be an enjoyable ride, but old enough not to stress about.
If you want to trade I'm most interested in a dropper post for a Scott Scale hardtail mountain bike.