Genuine Palm Universal USB hot sync cradle, it allows you to sync your Palm to the palm desktop on your computer, it will also charge via USB when your computer is on, to charge when computer is not on either connect it to a USB power outlet, or use a power supply (not included) which can plug into the back. Good condition as shown in photos, fully functional.
It is compatible with the following models only (source wikipedia)
Palm Models fitted with the Universal Connectoredit
Garmin Models fitted with the Universal Connectoredit