Product Description Pretec's 56K Fax/Modem is based on the K56flexTM and supporting ITU-T V.90 standard which delivers up to 56Kbps downloads utilizing ordinary analog phone line. Amazon.com Pretec's CompactModem is among the first and smallest 56 Kbps fax/data modem cards for Pocket PCs and Windows CE-based PDAs and handheld PCs. It allows you to browse the Internet and send or receive both faxes and e-mails from your Pocket PC device. All you need is an ordinary household analog phone line to connect to and you are ready to go. The Pretec CompactModem is compatible with both CompactFlash I and II card slots. It supports data transfer at speeds up to 56 Kbps and fax transmission at 14.4 Kbps. This card features low 3.3-volt power consumption and innovative power management, including programmable sleep modes, so it won't drain precious battery resources from your Pocket PC.Pretec's fax/modem also supports the V.80 application interface, so it is capable of operating with any H.324 video phone system. This functionality provides you with affordable video conferencing over ordinary telephone lines. By adding an optional CompactFlash adapter, the card becomes a PC card for use with most notebook computers and instruments with PCMCIA slots. Pretec's CompactModem works with Windows 95, 98, NT, and, most importantly, Pocket PC and Windows CE environments. For a complete list of compatible devices, click Technical Data in the left navigation bar.