NETGEAR HA501 Wireless Adapter. You want speed and mobility for your small office. NETGEAR's ultra-fast HA501 802.11a Wireless CardBus Adapter delivers the ultimate in wireless networking performance, running at 54 Mbps, or up to 72 Mbps in turbo mode. It gives you the freedom to roam throughout the workplace and stay connected to corporate resources, e-mail, and the intranet without interference. Send and receive large files, including high-quality audio and video, anywhere in your business or classroom. Share presentations and collaborate on graphics-intensive projects without being tethered to your desk.