The Amped Wireless High Power Wireless-150N Compact USB Adapter provides your Mac or Windows laptop or desktop computer with long range, high speed Wi-Fi access in a small package. The compact size of the USB adapter makes it easy to take with you wherever you go. The High Power adapter also features a high gain 3dBi Wi-Fi upgradable antenna and an internal power amplifier to give it the range necessary to connect to Wi-Fi networks over longer distances.