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The D-Link DCF-660W is a wireless CompactFlash card that is IEEE 802.11b compliant. The DCF-660W provides a solution to connect PDAs (Personal Digital Assistants) to an existing IEEE 802.11b wireless network. The DCF-660W operates in the 2.4GHz frequency range and utilizes Direct Sequence Spread Spectrum (DSSS). The DCF-660W is for users of PDAs who want the convenience of roaming and connecting to an existing wireless network without being tethered to wires.

The DCF-660W will operate in either Ad-Hoc mode (networking without an Access Point) or in Infrastructure mode (networking using an Access Point). The DCF-660W can reach a maximum signal rate of up to 11 Mbps*. Also, the DCF-660W provides an “Auto Fall-Back” feature to automatically adjust the speed of the adapter depending on the distance from the Access Point. In an open environment, the DCF-660W with its built-in antenna has an extensive operating range for added mobility.

The DCF-660W requires a CompactFlash type I or II interface (available in most PDAs). To ensure long battery life, the DCF-660W has minimal power consumption of 80mA in Power Save mode and less than 350mA in transmission mode. The DCF-660W is compatible with Windows CE version 3.0 and works with Windows PC 2002.

 ^{Maximum wireless signal rate based on IEEE Standard 802.11b specifications. Actual data throughput will vary. Network conditions and environmental factors, including volume of network traffic, building materials and construction, and network overhead, lower actual data throughput rate.}