Product Notes from Affordable Tech Inc: The Linksys WUSB11 v2.6 USB Wireless-B Networking Adapter is a sought-after wireless adapter that, because of its Linux roots, works with Series 2 Tivo DVRs, MSNTV / MSNTV2 / WebTV boxes, many versions of Linux, and most versions of Windows. If you're looking for a low-cost alternative wireless adapter for your Tivo DVR, bear in mind that the WUSB11 v2.6 will only work with Tivo Series 2 DVRs (including Dual Tuner units). It will not work with the Series 3 or HD Tivo units, DirectTV units with Tivo, Humax units with Tivo, or any other 3rd party DVR with Tivo technology. Note also that this adapter only supports open networks or those secured with 64-bit or 128-bit WEP encryption - there is no support for WPA/WPA2 encryption. PC Users: The device supports Windows 98se, Me, 2000, and XP. There are no drivers available for Windows Vista. There are no drivers available for the Mac OS. Manufacturer's Description: If you've been searching for an easy way to integrate any PC or laptop into your wireless network, you'll find just the solution with the Instant Wireless USB Network Adapter. The Plug-and-Play Wireless USB Network Adapter connects directly to any USB-ready PC-just plug it in and you're ready to share data, printers, or high speed Internet access over your existing wireless network. For desktop installation, you don't even have to open your PC's case. Not only is the Instant Wireless USB Network Adapter easy to install and use, it's also powerful. You can send and receive data at speeds up to 11Mbps. Need to use it temporarily on another PC? No problem. Plug it into the USB port, set it up, and you're ready to go. So for full desktop and notebook PC flexibility and wireless convenience, the Instant Wireless USB Network Adapter provides an all-in-one solution!