300Mbps High Performance Dual-Band 2.4Ghz 5Ghz Wireless N USB Adapter Connect to either a 5GHz or 2.4GHz network. Enhance any USB equipped laptop or desktop with the power of Dual-Band wireless N. Most laptops only have the 2.4GHz wireless built in, so if you are struggling for a signal switch to the less congested 5GHz band. Please search online for the advantages of switching to the 5Ghz band (faster and better signal) and also please ensure your router operates in the 5GHz band (not all do). The easy to setup, convenient and compact adapter plugs into your laptop or desktop USB port. The Setup Wizard and push-button security setup make it easy to install and configure for use with your network. Powerful protection supports the latest industry standard wireless data encryption to protect your data and networking activity  all with the push of a button. Using today's most advanced wireless N networking technology, the EUB-9801 300Mbps Wireless N Dual-Band Adapter is designed to provide superior range and blazing wireless speed  anywhere you go. Connect to either a 5GHz or 2.4GHz network. Fully plug and play with Vista, Win7 and Mac0S 10.7 onwards.NOT COMPATIBLE WITH WINDOWS 8. Also compatible with XP but not plug and play, please download driver first before using set up button.