Haicom HI-204E PDA GPS Receiver + Dell Axim X5 Power Connector
I've Had This Receiver For About 2 years, and never had a problem with it. I have just upgrade to an X50v and CF GPS Receiver, so i have no need for this.
It was used for my X5, and has the connector cable for this, you can buy other cables for around £10 to connect it to all different PDAs.
Cold start it takes about 2 mins to lock onto 7 or more satellites, and if the signal drops it doesn't take long to find them again
Uk Sale really, would cost too much to post anywhere else!
£45 Inc RMSD.
PayPal preferred, but could discuss other methods.