WLAN Adapter - 54Mbps, 2.4/5GHz, 11a/b/g (WCB-D17 / WMP-D17 / WUS-D03) Alpha Networks' family of Wireless Client Adapters enables home and business users to connect their PCs to the LAN wirelessly. The adapters also provide advanced security, seamless roaming, full interoperability, and QoS features.