C9120AXE-K - Cisco Catalyst 9120 WiFi 6 Access Point

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C9120AXE-K

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

Cisco Catalyst 9120AX Series C9120AXE-K

Overview

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, K Domain.

Quick Specs

Product Code

C9120AXE-K

Description

Cisco Catalyst 9120AXE Series, K 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

K (K regulatory domain):

•2.412 to 2.472 GHz; 13 channels

• 5.180 to 5.320 GHz; 8 channels

• 5.500 to 5.620 GHz; 7 channels

• 5.745 to 5.805 GHz; 4 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

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Specification

C9120AXE-K Specification

C9120AXE-K Specification

Description

Cisco Catalyst 9120AXE Series, K 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

K (K regulatory domain):

 2.412 to 2.472 GHz; 13 channels

• 5.180 to 5.320 GHz; 8 channels

• 5.500 to 5.620 GHz; 7 channels

• 5.745 to 5.805 GHz; 4 channels

Frequently Asked Questions

What is the primary difference between the C9120AXE-K and the standard internal antenna model? +
The C9120AXE-K is designed specifically for environments requiring external antennas, such as warehouses or high-ceiling venues. By using external RP-TNC connectors, you can deploy specialized high-gain or directional antennas to optimize RF coverage patterns and signal penetration in challenging indoor physical layouts where a standard internal antenna model would fall short.
Does the C9120AXE-K support Wi-Fi 6 (802.11ax) standards? +
Yes, this access point is built on the Wi-Fi 6 standard, utilizing OFDMA and MU-MIMO technology to increase network efficiency and capacity. It is designed to handle high-density environments effectively, providing better performance for client devices compared to previous 802.11ac wave 2 hardware, especially when managing multiple simultaneous data streams in congested office or public spaces.
Is the C9120AXE-K compatible with existing Cisco Catalyst 9800 Series Wireless Controllers? +
Absolutely. The C9120AXE-K is fully compatible with Cisco Catalyst 9800 Series Wireless Controllers. It is designed to integrate seamlessly into a modern Catalyst software-defined access architecture, allowing for centralized management, consistent security policy enforcement, and simplified firmware updates across your entire campus wireless infrastructure.
How should I power the Cisco C9120AXE-K access point? +
The unit supports 802.3at Power over Ethernet (PoE+), which is the recommended method for full-feature operation. If your current switching infrastructure does not support sufficient power, you may utilize a Cisco power injector or an appropriate local power adapter. Please verify your switch power budget to ensure the AP maintains full operational capacity during peak radio usage.
Can the C9120AXE-K function in a Cisco DNA Center environment? +
The C9120AXE-K is built to be a cornerstone of the Cisco DNA architecture. When managed through Cisco DNA Center, administrators gain access to advanced analytics, automated provisioning, and AI-driven assurance. This integration provides proactive visibility into network health and helps streamline the operational lifecycle of your wireless deployment from a single pane of glass.
What kind of radio performance can I expect from the C9120AXE-K? +
This model features a 4x4:4 MU-MIMO configuration, delivering high-performance throughput across both 2.4 GHz and 5 GHz bands. It is optimized for environments where low latency and high reliability are critical, ensuring that modern mobile and IoT devices maintain stable connectivity even during periods of heavy data traffic throughout your facility.
Does the C9120AXE-K include integrated security features? +
Yes, security is a core component of this hardware. It supports WPA3 encryption, Cisco CleanAir technology for spectrum intelligence, and integrated WIPS/WIDS capabilities. By utilizing Cisco Trust Anchor technologies, the C9120AXE-K ensures that the device remains tamper-proof and that your wireless traffic is protected against evolving cybersecurity threats at the edge of your enterprise network.
What are the mounting requirements for the C9120AXE-K when using external antennas? +
When mounting this unit, ensure that you have the appropriate mounting brackets compatible with your physical infrastructure. Because this model utilizes external antennas, you must account for the cable runs between the access point and the antennas. Always perform a professional site survey to determine the optimal antenna placement and orientation to minimize signal interference and maximize coverage.
Can I request a custom bulk quote for a large-scale C9120AXE-K deployment? +
Certainly. At BuyRouterSwitch.com, we specialize in supporting large enterprise projects. If you are planning a facility-wide wireless refresh and need a bulk quote for the C9120AXE-K, please contact our dedicated sales team. We can provide tiered pricing structures for volume purchases to ensure your project stays within budget while meeting all necessary technical requirements.
Why should I choose BuyRouterSwitch.com for my Cisco networking hardware? +
BuyRouterSwitch.com is a trusted source for authentic Cisco enterprise equipment. We prioritize professional service, ensuring that every order is handled with the precision required for complex IT environments. By choosing us, you receive genuine, high-quality hardware accompanied by efficient, secure ordering processes designed to meet the rigorous standards of today’s IT procurement professionals.

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