Product description Manufacturer : Compaq Part Number : 210627-001 Product Description : COMPAQ IPAQ CF EXPANSION PACK SLEEVE P/N: 173397-001 Amazon.com The Compaq iPAQ CompactFlash expansion pack slides onto your iPAQ Pocket PC and increases the functionality of your system. The unit easily attaches to your iPAQ Pocket PC to create an expansion slot. You can plug in a variety of devices such as storage cards, LAN connections, modems, and bar code scanners developed by other manufacturers. This expansion pack transforms your iPAQ Pocket PC into several devices in an easy, streamlined, and convenient manner.