Given the specs it’s likely a Point of Sale device or badge access reader.
FCC ID application submitted by Apple Inc. for Network Adapter for FCC ID BCGA2657. Approved Frequencies, User Manuals, Photos, and Wireless Reports.
fccid.io
I seem to recall Apple designed one many years ago for their spaceship campus. It’s likely an upgraded access reader for their campus.
FCC ID application submitted by Apple Inc. for Wireless Device for FCC ID BCGA1846. Approved Frequencies, User Manuals, Photos, and Wireless Reports.
fccid.io
Apple will likely never enter the time capsule or airport market again. It’s a constantly changing technology, with a huge customer support expense, on a low margin appliance.