AIR802 Wireless USB WiFi Adapter 802.11b/g With External & Removeable Antenna (formerly USB-ADG-1) Formely USB-ADG-1 Add 802.11b/g WiFi Network Capability to Existing Computer USB 1.1 & 2.0 Compliant Doubles or More Signal Strength Over Internal Cards Operating Systems - Windows 98SE, Me, 2000, XP x64, Vista (x32 and x64), Win 7 (x32 and x64), MAC (v10.3 and v10.4) Leopard, Linux