Compaq iPAQ 216198-B21 Dual Slot PC Card Expansion Pack for 3600, 3700, 3800, 3900, 5400 series

• Increase the file storage space on your iPAQ Pocket PC
• Access your company's wireless network (WLAN) for e-mail and Web browsing
• Access the Internet wirelessly through the cellular phone system
• Provides twice as much battery power as the PC Card Expansion Pack to run your PC Cards or to extend the life of your iPAQ Pocket PC
• Holds two Type II or one Type III PC Cards that are compatible with the Pocket PC operating system

This is a great expansion pack to own. Slide it on and "Tah ding" your connected and ready to go. I chose to go with this instead of the CF expansion pack because of the flexability of options. You can use 2 CF cards (with the use of CF card Adapters, it does come with 1), or 2 type II PC cards, or 1 CF card and 1 type II PC card, or 1 type III PC card. It also has a built in battery pack to extend how long you can use your iPAQ between charges. By the way if you have a charger for you iPAQ, which I'm sure you do, It will charge the battery in the pack at the same time you charge your iPAQ.

If you are looking for a compact expandable solution, this pack is "not" what your looking for. The straight truth is it's bulky. The pictures you see on the web make it look thin and are misleading. However if you don't mind the bulk I'm sure you'll reap the joys the flexibility of this unit will bring you.

The only reason I give this 4 stars out of 5 is I wish it had a screen cover built in so I could toss it in my bag when I'm on the go and not worry about anything buggering up the touch screen, or pausing the media player when I'm listening to MP3's.

Buy Compaq iPAQ 216198-B21 Dual Slot PC Card Expansion Pack for 3600, 3700, 3800, 3900, 5400 series Now

Using as GPS (Garmin Sofware). 8G mem in slot2 holding US and Canada maps, and receiver unit in first slot.