Esky 300Mbps Mini Wireless USB Wifi Adapter LAN Antenna Network Adapter 802.11n/g/b IEEE 802.11n, IEEE802.11g, IEEE802.11b standard; Data Rate up to 300Mbps Works with Windows XP/Vista/Win 7/Mac/Linux Pocket design, very mini size,light weight, easy to carry, convenient to use Size: 1.29inch x 0.62 inch x 0.26inch ( 33mm x 16mm x 6mm) Weight: 0.67 oz (19 g)