Apple has announced that its popular AirPort Extreme 802.11n Wi-Fi Base Station and Time Capsule now feature simultaneous 2.4 GHz and 5 GHz dual-band networking for optimal performance, range and compatibility.

An innovative Guest Network feature allows setting up a secondary network for friends and visitors with Internet-only access so you don’t have to hand out your WiFi password. Time Capsule combines an 802.11n router and server-grade hard disk for automatic wireless back-up with Time Machine.

Please note thatAirPort Extreme and Time Capsule are based on an IEEE 802.11n draft specification. Actual performance will vary based on range, connection rate, site conditions, size of network and other factors.

Price and availability

Time Capsule is immediately available in two models: a 500GB model for $479 RRP and a 1TB model for $799. The AirPort Extreme Base Station is also available immediately for a suggested retail price of $279.