C9124AXI-E

4x4:4 in both 2.4GHz and 5 GHz uplink/downlink MU-MIMO with four spatial streams
2.4 GHz: Peak gain 7 dBi, internal antenna, Vertical Polarization, omnidirectional
5 GHz: Peak gain 7 dBi, internal antenna, Vertical Polarization, omnidirectional
BLE Antenna Gain: 5 dBi, internal antenna, Vertical Polarization, omnidirectional
The Catalyst 9124AXE Access Point is certified for use with antenna gains up to 13 dBi (2.4 GHz and 5GHz)
Cisco offers the industry's broadest selection of antennas, delivering optimal coverage for a variety of deployment scenarios.
Supports Self-Identifiable Antennas (SIA)
For more details, see Catalyst 9124AX Series Getting Started Guide.
1x 100/1000/2500 BASE-T (Ethernet) uplink interface
1x Gigabit Ethernet SFP
Supports PoE output (802.3af compliant PSE) on the 1x 10/100/1000 BASE-T (Ethernet) downlink interface if C9124AX powered from one of the following:
UPOE or 802.3bt inline power source (Switch or Power Injector)

DC input (with external power supply rated 3 60W)

Management console port (RJ-45)
Status LED indicates boot loader status, association status, operating status, boot loader warnings

802.3af Power over Ethernet (PoE), 802.3at PoE+, 802.3bt PoE++, Cisco Universal PoE (Cisco UPOE)
Cisco power injector, AIR-PWRINJ-60RGD1= and AIR-PWRINJ-60RGD2=
Cisco power injector, AIR-PWRINJ6= (Note: This injector supports 802.3at)
DC power source: Auxiliary DC input, 24V to 56V

2.4 GHz

30 dBm (1W)
-4 dBm (0.4 mW)
5 GHz

30 dBm (1W)
-4 dBm(0.4 mW)