You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What additional feature does the AirPort Time Capsule have over the Airport Extreme in the Apple network product line-up?" whose answer is an internal hard drive.
Each document should contain about 30 words, and these documents should contain useful information.

Query: differences between AirPort Time Capsule and AirPort Extreme
Useful Output:

Doc 1: Previous model TC and Airport are easy to tell apart. TC is AC powered and much larger than the Extreme which uses external DC adapter.
Doc 2: The AirPort Extreme which died was merely a dumb repeater for the Time Capsule. I only need a new repeater -- can't really afford to overhaul my
Doc 3: The AirPort Extreme is somewhere in-between. It has the same features as the Time Capsule but no internal backup drive. Having a computer
Doc 4: The Time Capsule's SATA II interface makes it a considerably faster experience compared to the cheaper USB 2.0 dock solution.
Doc 5: Unlike the AirPort Extreme Base Station, the Time Capsule quickly recognized our external hard drive formatted using FAT32, and it worked as