Does the Apple AirPort Extreme A1521 have a time capsule in it?
Solution 1:
Nope, just a regular AirPort Extreme. Not a Time Capsule model.
They look identical but if you take it apart you will find they both have a cavity where a HDD would sit but the A1521 lacks a logic board SATA cable and power connection while the Time Capsule model includes it.
