This device is the Dell Axim X30 Pocket PC. The model number is HC02U. This device was released by Dell in 2004. The X30 was the first series of Dell Pocket PCs that offered the Windows Mobile 2003 second edition. This model can only take SD cards with a maximum of 4GB. The entry-level does not have any wireless capabilities. The higher-end X30 device has double the ROM and RAM as well as wifi and Bluetooth capabilities.
The Dell Axim X30 Pocket PC can be identified by the model number HC02U on the service tag located under the battery.