Hello Lin,
To help clarify, the Ordering Part Number for standard ZoneFlex APs is (901), and will ship
with a 104.x AP firmware that can connect to ZoneDirector or SmartZone controllers, or operate
in a Solo/Standalone mode.
To differentiate, the Unleashed Ordering Part Number uses (9U1) and comes with Unleashed
firmware that will not automatically connect to ZD/SZ controllers. After setting up the first AP with
Unleashed code as your Master AP, the next 24 will connect automatically, upgrade if necessary,
and get configured.
If you have plans to go either way, order the AP part number that matches, because any RMA
will replace your AP with the same part number models ONLY.