Apple's AirPort Express Base Station has always been remarkable in that it is networking hardware that people actually seem to get excited about. Thanks to an update to the 802.11n wireless networking standard, this compact, easy-to-use device can now add increased wireless networking performance to its list of pros. It might not be as fast as some of the more robust 802.11n wireless devices, and at $99, it's also on the pricier side of basic 802.11n routers. Still, for its portability and its integration with iTunes, we recommend it to anyone interested in setting up a wireless network on the go, or if you're after some basic music streaming capability.
Design and setup
Aside from the upgrade to the 802.11n, Apple made no other changes to the original AirPort Express design. It remains the exact size (3.7 inches high, 1.1 inches wide, 3 inches deep), weight (.4 pounds), and shape (little, boxy) as the original model, which lends the AirPort Express a unique degree of portability. It also has the same snap-in, fold-out power plug, and it retains the same array of ports. You get one 10/100 Ethernet port to connect the AirPort Express to your main wired Internet connection, one USB port that lets you install a printer on your network, and a single audio jack that doubles as an analog and an optical audio output.
As with the original model, setting up the AirPort Express is remarkably easy. You simply plug the AirPort Express into a power outlet, install the software onto a PC on your network, and follow the basic prompts via Apple's AirPort Utility. The experience is basically the same on a Windows PC, the main exception being that it installs Apple's Bonjour network device discovery software as well, if you don't already have it. The AirPort Express supports both the 2.4GHz and 5.0GHz wireless frequencies, so you can opt for the faster 5.0GHz band if you only need to worry about 802.11a/n-compatible devices.
Although nothing aside from the networking standard has changed in the AirPort Express, with Apple's new Time Capsule and the older AirPort Extreme Base Station out there as well, it can't hurt to clarify the characteristics of Apple's family of networking products. All three are 802.11n capable, but the AirPort Express is the only one that offers built-in iTunes audio streaming over a direct connection. The AirPort Express is also the only one that won't support an external hard drive over the USB port, although like the others, it does support a USB printer over the network. The AirPort Express can support 10 simultaneous users, while the AirPort Extreme and the Time Capsule can both support up to 50. And where the others offer Gigabit Ethernet jacks, the AirPort Express also has only a single 10/100 Ethernet jack. That's fine, since the AirPort Express isn't intended to accept any client systems wired directly to it.
That audio out is one of the main features that the AirPort Express can hold over Apple's Time Capsule, the pricier AirPort Extreme Base Station, and indeed most other wireless routers. If you plug a set of speakers (or any audio output device) into the AirPort Express, you can then use any iTunes-equipped computer on the AirPort's network to stream music to that device. It's no replacement for a dedicated music-streaming device such as Logitech's Squeezebox Duet, but if you're OK with playing DJ through the iTunes interface on your computer, the AirPort Express can provide a straightforward way to pipe music throughout your house. Apple also still hasn't opened up iTunes' DRM to other audio-streaming hardware vendors, which means the AirPort Express and the Apple TV are still the only networking devices that can stream music from iTunes.