Featuring an all-new design, AirPort Express now supports simultaneous dual-band 802.11n Wi-Fi. Set up your wireless network quickly and easily using your iPhone, iPad, iPod touch, Mac, or PC. Create a network just for guests. Stream music to any room in the house. And print from any room in the house, too. All with the latest wireless technology. Compatibility and security - AirPort Express is compatible with devices using the 802.11a, 802.11b, 802.11g, and 802.11n specifications. So no matter what Wi-Fi device you"re using, it will work with AirPort Express. AirPort Express also features a built-in firewall to protect your network from malicious Internet attacks. The firewall is automatically turned on, so you don"t have to do a thing. Create a guest network - Set up a separate Wi-Fi network with a separate password just for your guests. Simply enable the guest networking feature, and your guests can access the Internet but not other parts of your primary network, such as your computers, printers, and LAN-attached hard drives. Ports - Ethernet WAN, Ethernet LAN, USB, 3.5mm Analog/Optical Audio and Power Connector System Requirements - From a Mac - Mac OS X v10.5.7 or later, Ethernet or wireless networking capability From an iOs device - An iPhone, iPad, or iPod touch with iOS 5 or later and the AirPort Utility app; From a PC - Windows 7 or later and AirPort Utility 5.6.1; A wireless-enabled computer or device, a base station or other access point, and Internet access (fees may apply). Some ISPs are not currently compatible with AirPort Express.