Etekcity 1000mW 802.11 B/G Long range High Power USB Wireless WiFi Computer Network Adapter RTL8187L Chipset with 6dBi Antenna and extra 13 dbi antenna Connects at a full 54Mbps via mini USB2.0 standard (also compatible with USB1.1,up to 8 times faster) with 6dBi Antenna and extra 13 dbi antenna Chipset: Realtek RTL8187L; Data Modulation Type: BPSK,QPSK, CCK and OFDM Plug-and-Play Compatible with windows 98SE, XP ,2000, Vista, Mac v10.4 and v10.5 and Linux One Year Warranty by Etekcity