The AC version Time Capsule A1470 and the Extreme A1521. We refer to them as Gen5 TC and Gen6 AE. However Apple dropped using the Generation and if you open the airport utility and check the model it is just listed as

The AirPort Time Capsule is a wireless router but it also has a hard disk built-in. So I’ve been able to wirelessly use Time Machine to back up my iMac automatically and with incredible ease. AirPort - Wikipedia The AirPort Time Capsule is a version of AirPort Extreme with a built-in hard-drive currently coming in either 2 TB or 3 TB sizes, with a previous version having 1 TB or 500 GB. It features a built-in design that, when used with Time Machine in Mac OS X Leopard, automatically makes incremental data backups. Amazon.com: Apple AirPort Time Capsule (2TB Storage) The current 5th Gen is working perfectly after 9 months, As is the Airport Extreme 6th Gen I bought at the same time. I have them hard wired together with cat 6 ethernet cable. Time capsule on the 3rd floor office and Airport Extreme on the 1st floor (man cave) in what Apple calls a "Roaming Network." Set Up Airport Time Capsule, 5 Quick ways Setting Up Time Capsule for the First Time on a Mac. The first quick way we’ll look at is the basic …

Mar 08, 2008

AirPort: Everything We Know | MacRumors

Dec 04, 2013

The current 5th Gen is working perfectly after 9 months, As is the Airport Extreme 6th Gen I bought at the same time. I have them hard wired together with cat 6 ethernet cable. Time capsule on the 3rd floor office and Airport Extreme on the 1st floor (man cave) in what Apple calls a "Roaming Network." Time Capsule is essentially an AirPort Extreme with a built-in hard drive for wireless file sharing and Time Machine backup. Read: How to set up a Time Capsule . We will look at each below. TotalMount is metal free because Apple user manuals say to place airport Extreme and Time Capsule ‘away from metallic surfaces.’ For more information, please see the Troubleshooting sections of the airport Extreme manual (page 15) and the Time Capsule manual (page 16).