Magellan Thales Portable GPS Receiver

A super powerful and expandable mapping pocket-sized GPS. The Magellan
eXplorist 400 features mapping capabilities and unlimited storage
via secure digital (SD) cards so you can take as many maps
with you as you want to. Include detailed street maps, topo or lake
maps using optional Magellan MapSend software. The high-speed USB
data port makes downloading information easy and the Geocache
Manager software enables you to download caches directly to your
eXplorist 400. eXplorist 400 has 8 MB of built-in maps and 8 MB of
internal memory to save 5 track log files, 20 routes and 500 points
of interest, but you can save as many as you need to optional SD
cards.