Ram Mounts RAM-HOL-C04.
RAM Mount plastic cradle to hold iPaq 1900 and 4000 series PDA's.
This cradle will hold your PDA if connected to an expansion pack, or left in the original protective cover. These actually hold the PDA tighter in the cradle than without them.
The cradle includes a set of nuts and bolts to connect the cradle to any of the RAM compatible mounts.