This USB Wireless Network Adapter is brand new. It is made by Linksys. Its model number is WUSB54G. The product is still in it's original plastic wrapping. The minimum PC requirements for use of this product is 400MHz processor or faster, 128MB RAM or more, CD-ROM, an available USB port, and Windows 98SE, ME, 2000, XP SP1 or later. The package includes the Wireless-G USB network adapter, an USB cable, and the setup CD. The product gets its power from the USB connection, so a power cord is not necessary. It's compatible with USB 1.1, but for best results use it with USB 2.0.