C9120AXE-S - Cisco Catalyst 9120 WiFi 6 Access Point

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C9120AXE-S

C9120AXE-S - Cisco Catalyst 9120 WiFi 6 Access Point
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C9120AXE-S Overview

Cisco Catalyst 9120AX Series C9120AXE-S

Overview
C9120AXE-S Overview

Cisco Catalyst 9120AXE, 100,1000,2500 Mbit/s, IEEE 802.11a, IEEE 802.11ac, IEEE 802.11ax, IEEE 802.11b, IEEE 802.11d, IEEE 802.11g, IEEE..., Multi User MIMO, AES, EAP, EAP-GTC, EAP-SIM, MSCHAPv2, TLS, TTLS, WPA, WPA2, WPA3, Ethernet (RJ-45), Mobile network (SIM), Wi-Fi, Ceiling, Floor, Table, Wall

The Cisco® Catalyst® 9120 Series Access Points are the next generation of enterprise access points. They are resilient, secure, and intelligent. Wi-Fi 6; 4x4:4 MIMO, S Domain.

Quick Specs

Product Code

C9120AXE-S

Description

Cisco Catalyst 9120AXE Series, S Domain

Software

• Cisco Unified Wireless Network Software Release 8.9.x or later

• Cisco IOS® XE Software Release 16.11 with AP Device Pack, or later

Supported wireless LAN controllers

• Cisco Catalyst 9800 Series Wireless Controllers

• Cisco 3500, 5520, and 8540 Series Wireless Controllers and Cisco Virtual Wireless Controller

Dimensions (WxLxH)

8.5 x 8.05x 2.0" (21.6 x 21.6 x 5.1 cm)

System memory

• 2048 MB DRAM

• 1024 MB flash

Frequency band and 20-MHz operating channels

S (S regulatory domain):

•2.412 to 2.472 GHz; 13 channels

• 5.180 to 5.320 GHz; 8 channels

• 5.500 to 5.700 GHz; 11 channels

• 5.745 to 5.825 GHz; 5 channels

Product Details

Cisco AP 9120 Series provides these features:

• Wi-Fi 6 (802.11ax)

• Cisco RF ASIC

• Uplink/downlink OFDMA

• MU-MIMO technology

• BSS coloring

• Target wake time

• Intelligent Capture

• Flexible Radio Assignment

• Dual 5-GHz radio support

• Smart antenna connector

• Cisco Mobility Express

• Multigigabit Ethernet support

• Bluetooth 5

• Container support for applications

• Apple Features

Supported Platforms

Supported wireless LAN controllers and Software

Recommended Model

Cisco 3500 Series Wireless Controllers

AIR-CT3504-K9

Cisco 5520 Series Wireless Controllers

AIR-CT5520-K9

Cisco 8540 Series Wireless Controllers

AIR-CT8540-K9

AIR-CT8540-1K-K9

Cisco 9800 series Wireless Controllers

C9800-40-K9

C9800-80-K9

Cisco Virtual Wireless Controller

/

Cisco Unified Wireless Network Software Release 8.9 or later

/

Cisco IOS ® XE Software Release 16.11 or later

/

Compare to Similar Items

Product Code

Description

C9120AXE-A

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, A Domain

C9120AXE-B

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, B Domain

C9120AXE-D

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, D Domain

C9120AXE-E

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, E Domain

C9120AXE-F

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, F Domain

C9120AXE-G

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, G Domain

C9120AXE-H

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, H Domain

C9120AXE-I

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, I Domain

C9120AXE-K

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, K Domain

C9120AXE-N

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, N Domain

C9120AXE-Q

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, Q Domain

C9120AXE-R

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, R Domain

C9120AXE-S

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, S Domain

C9120AXE-T

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, T Domain

C9120AXE-Z

Cisco Catalyst 9120AXE Access Point, internal antennas; Wi-Fi 6; 4x4:4 MIMO, Z Domain

Catalyst 9120AXE Access Point: Indoor, challenging environments, with external antennas

  • 2.4 GHz
  • 5 GHz
  • IEEE 802.11a, IEEE 802.11ac, IEEE 802.11ax, IEEE 802.11b, IEEE 802.11d, IEEE 802.11g, IEEE 802.11h, IEEE 802.11n, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3at
  • AES, EAP, EAP-GTC, EAP-SIM, MSCHAPv2, TLS, TTLS, WPA, WPA2, WPA3
  • Power over Ethernet (PoE)
  • Antennas quantity: 4 Internal & external Detachable antenna

Summary Description

Cisco Catalyst 9120AXE, 100,1000,2500 Mbit/s, IEEE 802.11a, IEEE 802.11ac, IEEE 802.11ax, IEEE 802.11b, IEEE 802.11d, IEEE 802.11g, IEEE..., Multi User MIMO, AES, EAP, EAP-GTC, EAP-SIM, MSCHAPv2, TLS, TTLS, WPA, WPA2, WPA3, Ethernet (RJ-45), Mobile networ

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Specification

C9120AXE-S Specification

C9120AXE-S Specification

Description

Cisco Catalyst 9120AXE Series, S Domain

Software

• Cisco Unified Wireless Network Software Release 8.9.x or later

• Cisco IOS® XE Software Release 16.11 with AP Device Pack, or later

Supported wireless LAN controllers

• Cisco Catalyst 9800 Series Wireless Controllers

• Cisco 3500, 5520, and 8540 Series Wireless Controllers and Cisco Virtual Wireless Controller

802.11n version 2.0 (and related) capabilities

• 4x4 MIMO with four spatial streams

• Maximal Ratio Combining (MRC)

• 802.11n and 802.11a/g beamforming

• 20- and 40-MHz channels

• PHY data rates up to 890 Mbps (40 MHz with 5 GHz and 20 MHz with 2.4 GHz)

• Packet aggregation: A-MPDU (transmit and receive), A-MSDU (transmit and receive)

• 802.11 Dynamic Frequency Selection (DFS)

• Cyclic Shift Diversity (CSD) support

802.11ac

• 4x4 downlink MU-MIMO with four spatial streams

• MRC

• 802.11ac beamforming

• 20-, 40-, 80-, and 160-MHz channels

• PHY data rates up to 3.47 Gbps (160 MHz with 5 GHz)

• Packet aggregation: A-MPDU (transmit and receive), A-MSDU (transmit and receive)

• 802.11 DFS

• CSD support

802.11ax

• 4x4 downlink MU-MIMO with four spatial streams

• Uplink/downlink OFDMA

• TWT

• BSS coloring

• MRC

• 802.11ax beamforming

• 20-, 40-, 80-, and 160-MHz channels

• PHY data rates up to 5.38 Gbps (160 MHz with 5 GHz and 20 MHz with 2.4 GHz)

• Packet aggregation: A-MPDU (transmit and receive), A-MSDU (transmit and receive)

• 802.11 DFS

• CSD support

Integrated antenna

Flexible radio (either on 2.4GHz or on 5GHz)

• 2.4 GHz, peak gain 4 dBi, internal antenna, omnidirectional in azimuth

• 5 GHz, peak gain 5 dBi, internal antenna, omnidirectional in azimuth

Dedicated 5GHz radio

• 5 GHz, peak gain 4 dBi, internal antenna, omnidirectional in azimuth

External antenna (sold separately)

• Cisco Catalyst 9120E Access Points are certified for use with antenna gains up to 6 dBi (2.4 GHz and 5 GHz)

• Cisco Catalyst 9120P Access Points) are certified for use with antenna gains up to 13 dBi (2.4 GHz and 5 GHz)

with the AIR-ANT2513-P4M-N= antenna

• Cisco offers the industry's broadest selection of antennas, delivering optimal coverage for a variety of

deployment scenarios

• Supports Self-Identifiable Antennas (SIA) on one RP-TNC port

Smart Antenna Connector

• Available on the 9120E and on the 9120P only

• Compact multi RF connector with DART interface

• Requires the AIR-CAB002-DART-R= 2 ft smart antenna connector when used with antennas with RP-TNC

connector

• Required when running the flexible radio as either a second 5-GHz serving radio or a Wireless Security

Monitoring radio

Interfaces

• 1x 100, 1000, 2500 Multigigabit Ethernet (RJ-45)IEEE 802.3bz

• Management console port (RJ-45)

• USB 2.0 @ 3.75W (enabled via future software)

Indicators

• Status LED indicates boot loader status, association status, operating status, boot loader warnings, and boot loader errors

Dimensions (W x L x H)

• Access point (without mounting brackets): C9120I: 8.5 x 8.5 x 1.7" (21.6 x 21.6 x 4.3 cm), C9120E and

C9120P: 8.5 x 8.05x 2.0" (21.6 x 21.6 x 5.1 cm)

Input power requirements

• 802.3at Power over Ethernet Plus (PoE+), 802.3bt Cisco Universal PoE (Cisco UPOE+, Cisco UPOE®)

• Cisco power injector, AIR-PWRINJ6=

• 802.3af PoE

• Cisco power injector, AIR-PWRINJ5= (Note: This injector supports only 802.3af)

Environmental

Cisco Catalyst 9120AXI

• Nonoperating (storage) temperature: -22° to 158°F (-30° to 70°C)

• Nonoperating (storage) altitude test: 25˚C, 15,000 ft.

• Operating temperature: 32° to 122°F (0° to 50°C)

• Operating humidity: 10% to 90% (noncondensing)

• Operating altitude test: 40˚C, 9843 ft.

Note: When the ambient operating temperature exceeds 40°C, the access point will shift from 4x4 to

2x2 on both the 2.4-GHz and 5-GHz radios, uplink Ethernet will downgrade to 1 Gigabit Ethernet;

however, the USB interface will remain enabled

Cisco Catalyst 9120AXE and 9120AXP

• Nonoperating (storage) temperature: -22° to 158°F (-30° to 70°C)

• Nonoperating (storage) altitude test: 25˚C, 15,000 ft.

• Operating temperature: -4° to 122°F (-20° to 50°C)

• Operating humidity: 10% to 90% (noncondensing)

• Operating altitude test: 40˚C, 9843 ft.

System memory

• 2048 MB DRAM

• 1024 MB flash

Warranty

Limited lifetime hardware warranty

Available transmit power settings

2.4 GHz

• 23 dBm (200 mW)

• 20 dBm (100 mW)

• 17 dBm (50 mW)

• 14 dBm (25 mW)

• 11 dBm (12.5 mW)

• 8 dBm (6.25 mW)

• 5 dBm (3.13 mW)

• 2 dBm (1.56 mW)

• -1dBm (0.79mW)

• -4dBm(0.39mW)

5 GHz

• 26 dBm (400 mW)

• 23 dBm (200 mW)

• 20 dBm (100 mW)

• 17 dBm (50 mW)

• 14 dBm (25 mW)

• 11 dBm (12.5 mW)

• 8 dBm (6.25 mW)

• 5 dBm (3.13 mW)

• 2 dBm (1.56 mW)

• -1dBm (0.79mW)

Frequency band and 20-MHz operating channels

S (S regulatory domain):

 2.412 to 2.472 GHz; 13 channels

• 5.180 to 5.320 GHz; 8 channels

• 5.500 to 5.700 GHz; 11 channels

• 5.745 to 5.825 GHz; 5 channels

Frequently Asked Questions

What are the primary performance advantages of the Cisco C9120AXE-S access point? +
The C9120AXE-S leverages Wi-Fi 6 (802.11ax) technology to deliver high-density performance in challenging RF environments. It features 4x4 MU-MIMO with four spatial streams, significantly increasing aggregate throughput and capacity for client devices. By utilizing OFDMA and BSS coloring, it reduces latency and contention, ensuring consistent connectivity for bandwidth-intensive enterprise applications and high-density deployments.
Does the C9120AXE-S support external antennas for flexible deployment? +
Yes, this model is the 'E' variant, which signifies support for external antennas. It is specifically engineered for environments where standard internal antennas may not provide adequate coverage, such as warehouses, high-ceiling areas, or specialized enclosures. This allows IT administrators to deploy high-gain or directional antennas to precisely tailor the RF footprint to the physical requirements of the installation site.
How does the C9120AXE-S handle security for enterprise wireless networks? +
Security is built into the foundation of the Catalyst 9120AX series. It supports WPA3 encryption, ensuring robust data protection for connected clients. Additionally, the device integrates Cisco CleanAir technology, which proactively monitors the RF spectrum for interference and potential security threats, providing advanced visibility and automated mitigation to maintain a secure and reliable wireless environment.
What management platforms are compatible with the Cisco C9120AXE-S? +
This access point is designed for flexibility, supporting both Cisco DNA Center for intent-based networking and traditional Cisco wireless controllers (WLCs). Whether you are managing a campus-wide fabric network or a standalone controller-based architecture, the C9120AXE-S integrates seamlessly into Cisco’s broader management ecosystem, enabling centralized configuration, troubleshooting, and automated lifecycle management.
Is the C9120AXE-S suitable for high-density environments like lecture halls or conference centers? +
Absolutely. The C9120AXE-S is optimized for high-density scenarios where many users connect simultaneously. By supporting Wi-Fi 6 standard features such as target wake time and efficient scheduling, it effectively manages traffic in crowded spaces. Its ability to handle high client counts while maintaining performance makes it an ideal choice for education, hospitality, and large enterprise meeting environments.
How does the C9120AXE-S support IoT integration in a smart building? +
Beyond Wi-Fi connectivity, this access point includes integrated Bluetooth Low Energy (BLE) radio hardware. This allows organizations to support IoT use cases such as asset tracking, indoor navigation, and proximity-based services without needing a separate overlay network. It provides a scalable platform for expanding smart building capabilities while maintaining a unified management point for all wireless traffic.
What are the power requirements for the C9120AXE-S during operation? +
To operate at full capacity, the device requires 802.3at Power over Ethernet (PoE+). While it can function on standard 802.3af PoE, certain advanced features or spatial streams may be restricted to remain within the power budget. For optimal performance, we recommend using a switch that fully supports the 802.3at standard to ensure the radio chain and processing power remain unrestricted.
Does the C9120AXE-S provide features for RF spectrum analysis? +
Yes, the integrated Cisco CleanAir technology serves as a dedicated sensor to identify and classify non-Wi-Fi interference, such as microwave ovens, motion sensors, or rogue devices. This feature helps network administrators pinpoint the root cause of connectivity drops or performance degradation, enabling rapid remediation and ensuring the stability of the wireless network in complex industrial or office settings.
Can I obtain a bulk quote for multiple C9120AXE-S units through BuyRouterSwitch.com? +
We specialize in fulfilling large-scale enterprise orders. If you are planning a facility-wide refresh or an expansion requiring multiple access points, please contact our sales team directly. We are experienced in providing competitive pricing and tailored quotes for bulk purchases to ensure your project stays within budget while meeting your hardware requirements.
Why should I choose BuyRouterSwitch.com for my Cisco networking hardware needs? +
BuyRouterSwitch.com is a trusted source for authentic Cisco equipment. We prioritize secure ordering processes and provide clear, professional communication to help you navigate your networking infrastructure needs. By choosing us, you receive dedicated support throughout the procurement cycle, ensuring that your equipment arrives ready for deployment in your mission-critical environment.

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