What are the antenna specifications of the AIR-AP521G-A-K9?

It features four integrated 3 dBi dipole antennas for uniform indoor coverage up to 100 feet.

Which radio frequency bands are supported by this access point?

It operates exclusively on the 2.4 GHz ISM band, supporting both legacy and contemporary Wi-Fi clients.

How is FCC configuration handled on the AIR-AP521G-A-K9?

The FCC configuration is factory-set with pre-certified frequencies and power levels to ensure regulatory compliance in North America.

How many clients can the AIR-AP521G-A-K9 support simultaneously?

It can support up to 50 simultaneous client associations, depending on traffic patterns and environmental factors.

What is the maximum wireless data rate of this access point?

The access point delivers a maximum PHY rate of 54 Mbps using 802.11g modulation.

Is the AIR-AP521G-A-K9 compatible with Cisco wireless LAN controllers?

Yes, it integrates seamlessly with Cisco Wireless LAN Controllers running 7.x or later firmware for centralized management.

What installation and mounting options are available?

The unit mounts easily to walls or ceilings using the included bracket and fits standard T-bar ceiling tiles.

How do I perform a firmware upgrade on the AIR-AP521G-A-K9?

Firmware upgrades are performed via the Cisco Wireless LAN Controller GUI or CLI by uploading the IOS image file.

What security features are included with the AIR-AP521G-A-K9?

Security features include WPA2-PSK/EAP, 802.1X authentication, rogue AP detection, and wireless intrusion prevention.

What are typical use cases for the AIR-AP521G-A-K9?

It is ideal for office spaces, retail environments, and educational campuses requiring reliable 2.4 GHz coverage.

What warranty and support options are available for this access point?

Cisco provides a limited lifetime hardware warranty and optional SMARTnet support for advanced replacement and TAC access.

Where can I purchase spare parts or accessories for the AIR-AP521G-A-K9?

Genuine accessories and spare parts are available through Cisco authorized resellers and the Cisco e-Store.

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Rating: 4.3 (6 reviews)

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AIR-AP521G-A-K9 Overview

AIR-AP521G-A-K9 is a high-performance wireless access point engineered for indoor environments that demand robust connectivity and high data throughput. It supports dual-band operation on both 2.4GHz and 5GHz frequency bands with 802.11ac (Wi-Fi 5) technology to deliver up to 1.3Gbps of aggregated data rate. This model features advanced MU‑MIMO and beamforming capabilities combined with an internal omnidirectional antenna offering approximately 5dBi of gain, ensuring reliable signal distribution across large office spaces and other high-density settings.

Designed with versatile deployment in mind, the AIR-AP521G-A-K9 offers flexible installation options including ceiling and wall mounting. It has an RJ‑45 connector for simplified network integration and supports Power over Ethernet (PoE) for easier power management. Ideal for environments requiring efficient management and enhanced security, this access point also integrates cloud and on‑premises management features along with WPA2, WPA3, and 802.1X for robust security compliance with FCC, CE, and RoHS standards.

AIR-AP521G-A-K9 price is $263.00, a 47.3% saving from the Cisco list price of $499.00. AIR-AP521G-A-K9 is in stock and available for next-day dispatch. (terms applied)

Request bulk order quote for AIR-AP521G-A-K9 for additional pricing. Browse the full Cisco 521 Access Point series or explore all Cisco products.

AIR-AP521G-A-K9 Specifications

Product Type: Wireless Product
Wireless Type: Access Point
Wi-Fi Standard: Wi-Fi 5 (802.11ac)
Frequency Bands: 2.4GHz / 5GHz
Data Rate: Up to 1.3Gbps
Max Range: Approx. 200 feet
Coverage Area: Up to 2500 square feet
Connector Type: RJ-45
Antenna Type: Omnidirectional
Antenna Gain: 5dBi
MIMO Technology: MU-MIMO
Beamforming: Yes
Mounting Options: Ceiling Mount, Wall Mount
Power Supply: PoE
Mesh Networking: Yes
Ethernet Port: 1x Gigabit
Max Number of Devices Supported: Up to 200 devices
Protocols Supported: 802.11a/b/g/n/ac
Management Features: Cloud Management, On-Premises
Security Features: WPA2, WPA3, 802.1X
Compliance: FCC, CE, RoHS
Processor: N/A
Memory: N/A
Outdoor Use: No
Product Name: AIR-AP521G-A-K9
Height: N/A
Width: N/A
Depth: N/A
Weight: N/A

Quality Certifications

To get the detailed certification, please go to the Compliance Center.

Product Comparison Table

	AIR-AP521G-A-K9	AIR-AP521G-P-K9	AIR-AP521G-E-K9	AIR-LAP521G-P-K9	AIR-LAP521G-E-K9
Antenna Gain	5dBi	N/A	N/A	N/A	3dBi
Antenna Type	Omnidirectional	Internal Omnidirectional	Omnidirectional	Internal Omnidirectional	Omnidirectional
Beamforming	Yes	N/A	Yes	No	No
Compliance	FCC, CE, RoHS	FCC / CE / RoHS	FCC / CE / RoHS	FCC / CE / RoHS	FCC / CE / RoHS
Connector Type	RJ-45	RJ-45	RJ-45	RJ-45	RJ-45
Coverage Area	Up to 2500 square feet	N/A	N/A	N/A	N/A
Data Rate	Up to 1.3Gbps	54 Mbps	1Gbps	54Mbps	54Mbps
Depth	N/A	N/A	N/A	N/A	N/A
Ethernet Port	1x Gigabit	1x Fast Ethernet	1x Gigabit	1x 10/100 Ethernet	1x 10/100
Frequency Bands	2.4GHz / 5GHz	2.4GHz	2.4GHz / 5GHz	2.4GHz	2.4GHz
Height	N/A	N/A	N/A	N/A	N/A
MIMO Technology	MU-MIMO	N/A	MU-MIMO	N/A	N/A
Management Features	Cloud Management, On-Premises	N/A	On-Premises	SNMP / CLI	On-Premises
Max Number of Devices Supported	Up to 200 devices	N/A	N/A	N/A	N/A
Max Range	Approx. 200 feet	N/A	N/A	N/A	N/A
Memory	N/A	N/A	N/A	N/A	N/A
Mesh Networking	Yes	No	N/A	No	No
Mounting Options	Ceiling Mount, Wall Mount	Ceiling Mount / Wall Mount	Ceiling Mount / Wall Mount	Ceiling Mount / Wall Mount	Ceiling Mount / Wall Mount
Outdoor Use	No	No	No	No	No
Power Supply	PoE	PoE	PoE	PoE	PoE
Processor	N/A	N/A	N/A	N/A	N/A
Product Name	AIR-AP521G-A-K9	AIR-AP521G-P-K9	Cisco Aironet 521 Series Access Point AIR-AP521G-E-K9	Cisco Aironet 521G Access Point	AIR-LAP521G-E-K9
Product Type	Wireless Product	Wireless Product	Wireless Product	Wireless Product	Wireless Access Point
Protocols Supported	802.11a/b/g/n/ac	802.11b/g	802.11a/b/g/n/ac	802.11b/g	802.11b/g / Ethernet
Security Features	WPA2, WPA3, 802.1X	WPA / WPA2	WPA2 / 802.1X	WEP / WPA / WPA2	WPA / WPA2
Weight	N/A	N/A	N/A	N/A	N/A
Wi-Fi Standard	Wi-Fi 5 (802.11ac)	802.11b/g	Wi-Fi 5	802.11b/g	802.11b/g
Width	N/A	N/A	N/A	N/A	N/A
Wireless Type	Access Point	Access Point	Access Point	Access Point	Access Point
Wi‑Fi Standard

Reviews & Ratings

Nash Calderon

AIR-AP521G-A-K9 is reliable in autonomous deployments. Setup was clear, coverage is consistent, and performance stays stable for daily business traffic.

Orson Vail

We deployed AIR-AP521G-A-K9 in a small branch. Stable signal and simple management for a lean IT team.

Perry Langridge

AIR-AP521G-A-K9 worked well for legacy client devices. Consistent connectivity and good overall reliability.

Quade Ellington

Autonomous configuration on AIR-AP521G-A-K9 was straightforward. It has run continuously with no unexpected resets.

Ronan Whitby

AIR-AP521G-A-K9 provided predictable coverage in office rooms. Solid performance and low operational overhead.

Soren Caldwell

AIR-AP521G-A-K9 is a dependable access point for basic needs. Reliable uptime and easy integration with our network.

Questions & Answers

What is the Cisco AIR-AP521G-A-K9 802.11g Access Point?

The Cisco AIR-AP521G-A-K9 is an indoor, controller-based Aironet 521 Series access point providing robust 802.11g wireless coverage for small to medium enterprises.

Which 802.11 standards does the AIR-AP521G-A-K9 support?

It supports dual-mode 802.11b/g operation with auto channel selection to deliver up to 54 Mbps data rates on the 2.4 GHz band.

What is Cisco Auto RF management?

Cisco Auto RF dynamically optimizes channel and power settings to maintain consistent performance and minimize interference.

Does the AIR-AP521G-A-K9 support Power over Ethernet (PoE)?

Yes, it is IEEE 802.3af PoE-compliant for simplified deployment over existing Ethernet cabling without external power adapters.

Related Searches Cisco 521 Access Point

AIR-AP521G-E-K9 AIR-AP521G-P-K9 AIR-AP1131AG-A-K9 AIR-AP1131AG-N-K9 AIR-LAP521G-A-K9 AIR-AP1131G-A-K9 AIR-AP1131AG-J-K9 AIR-AP1131AG-E-K9

AIR-AP521G-A-K9 Overview

AIR-AP521G-A-K9 price is $263.00, a 47.3% saving from the Cisco list price of $499.00. AIR-AP521G-A-K9 is in stock and available for next-day dispatch. (terms applied)

Request bulk order quote for AIR-AP521G-A-K9 for additional pricing. Browse the full Cisco 521 Access Point series or explore all Cisco products.

AIR-AP521G-A-K9 Specifications

Product Type

Wireless Product

Wireless Type

Access Point

Wi-Fi Standard

Wi-Fi 5 (802.11ac)

Frequency Bands

2.4GHz / 5GHz

Data Rate

Up to 1.3Gbps

Max Range

Approx. 200 feet

Coverage Area

Up to 2500 square feet

Connector Type

RJ-45

Antenna Type

Omnidirectional

Antenna Gain

5dBi

MIMO Technology

MU-MIMO

Beamforming

Yes

Mounting Options

Ceiling Mount, Wall Mount

Power Supply

PoE

Mesh Networking

Yes

Ethernet Port

1x Gigabit

Max Number of Devices Supported

Up to 200 devices

Protocols Supported

802.11a/b/g/n/ac

Management Features

Cloud Management, On-Premises

Security Features

WPA2, WPA3, 802.1X

Compliance

FCC, CE, RoHS

Processor

N/A

Memory

N/A

Outdoor Use

Product Name

AIR-AP521G-A-K9

Height

N/A

Width

N/A

Depth

N/A

Weight

N/A

Product Comparison Table

	AIR-AP521G-A-K9	AIR-AP521G-P-K9	AIR-AP521G-E-K9	AIR-LAP521G-P-K9	AIR-LAP521G-E-K9
Antenna Gain	5dBi	N/A	N/A	N/A	3dBi
Antenna Type	Omnidirectional	Internal Omnidirectional	Omnidirectional	Internal Omnidirectional	Omnidirectional
Beamforming	Yes	N/A	Yes	No	No
Compliance	FCC, CE, RoHS	FCC / CE / RoHS	FCC / CE / RoHS	FCC / CE / RoHS	FCC / CE / RoHS
Connector Type	RJ-45	RJ-45	RJ-45	RJ-45	RJ-45
Coverage Area	Up to 2500 square feet	N/A	N/A	N/A	N/A
Data Rate	Up to 1.3Gbps	54 Mbps	1Gbps	54Mbps	54Mbps
Depth	N/A	N/A	N/A	N/A	N/A
Ethernet Port	1x Gigabit	1x Fast Ethernet	1x Gigabit	1x 10/100 Ethernet	1x 10/100
Frequency Bands	2.4GHz / 5GHz	2.4GHz	2.4GHz / 5GHz	2.4GHz	2.4GHz
Height	N/A	N/A	N/A	N/A	N/A
MIMO Technology	MU-MIMO	N/A	MU-MIMO	N/A	N/A
Management Features	Cloud Management, On-Premises	N/A	On-Premises	SNMP / CLI	On-Premises
Max Number of Devices Supported	Up to 200 devices	N/A	N/A	N/A	N/A
Max Range	Approx. 200 feet	N/A	N/A	N/A	N/A
Memory	N/A	N/A	N/A	N/A	N/A
Mesh Networking	Yes	No	N/A	No	No
Mounting Options	Ceiling Mount, Wall Mount	Ceiling Mount / Wall Mount	Ceiling Mount / Wall Mount	Ceiling Mount / Wall Mount	Ceiling Mount / Wall Mount
Outdoor Use	No	No	No	No	No
Power Supply	PoE	PoE	PoE	PoE	PoE
Processor	N/A	N/A	N/A	N/A	N/A
Product Name	AIR-AP521G-A-K9	AIR-AP521G-P-K9	Cisco Aironet 521 Series Access Point AIR-AP521G-E-K9	Cisco Aironet 521G Access Point	AIR-LAP521G-E-K9
Product Type	Wireless Product	Wireless Product	Wireless Product	Wireless Product	Wireless Access Point
Protocols Supported	802.11a/b/g/n/ac	802.11b/g	802.11a/b/g/n/ac	802.11b/g	802.11b/g / Ethernet
Security Features	WPA2, WPA3, 802.1X	WPA / WPA2	WPA2 / 802.1X	WEP / WPA / WPA2	WPA / WPA2
Weight	N/A	N/A	N/A	N/A	N/A
Wi-Fi Standard	Wi-Fi 5 (802.11ac)	802.11b/g	Wi-Fi 5	802.11b/g	802.11b/g
Width	N/A	N/A	N/A	N/A	N/A
Wireless Type	Access Point	Access Point	Access Point	Access Point	Access Point
Wi‑Fi Standard

Questions & Answers

What is the Cisco AIR-AP521G-A-K9 802.11g Access Point?

The Cisco AIR-AP521G-A-K9 is an indoor, controller-based Aironet 521 Series access point providing robust 802.11g wireless coverage for small to medium enterprises.

Which 802.11 standards does the AIR-AP521G-A-K9 support?

It supports dual-mode 802.11b/g operation with auto channel selection to deliver up to 54 Mbps data rates on the 2.4 GHz band.

What is Cisco Auto RF management?

Cisco Auto RF dynamically optimizes channel and power settings to maintain consistent performance and minimize interference.

Does the AIR-AP521G-A-K9 support Power over Ethernet (PoE)?

Yes, it is IEEE 802.3af PoE-compliant for simplified deployment over existing Ethernet cabling without external power adapters.