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

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.

I needed a replacement of my old dual CF sleeve. I wanted a dual slot because that serves my setup with one slot used for a CF-memory card holding lot of GPS maps. That was the only one I found (I realize this is long extinct hardware).

I was attracted by a dual slot , additional battery was an extra bonus.

This is a PC slot, so to be used with CF there should be an adapter. That did not scare me, because description clearly mentioned it is included in the shipment. It was not. To the fairness to the seller, they offered me to send an adapter. But the battery did not charge even after overnight charging. Again, I realize this is an equipment that probably was manufactured about a decade ago and battery just quietly died without initial use. But battery adds a lot of dimension (really) and at that point I did not want to have extra probably half of inch for the non functional piece. So altogether I returned it. Again, to the fairness to the seller they offered me to give a small credit, but you would be better off buying one CF slot sleeve without adapter and battery for about ten dollars. So I returned it. Two stars for the seller's efforts to work with me, none for the product.

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

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