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2100 Series controller efficiently manages up to 25 lightweight APs with stable performance.
AIR-WLC2125-K9
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2100 Series WLAN Controller for up to 25 Lightweight APs
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Name:
AIR-WLC2125-K9
- Description:
- 2100 Series WLAN Controller for up to 25 Lightweight APs
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 4741642122502
- Condition:
- Warranty:
- 3
- List Price:
$8,995.00
- Price:
$3,010.0066.5% off
Quantity:
1
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AIR-WLC2125-K9 Overview
AIR-WLC2125-K9 is a high-performance wireless LAN controller engineered to centralize the management and orchestration of enterprise wireless networks. Designed to integrate seamlessly with a diverse range of access points supporting 802.11a/b/g/n/ac wireless standards, this controller enables consistent connectivity and robust security management across mid-sized office environments and branch networks.
AIR-WLC2125-K9 offers flexible deployment options, making it ideal for installation in data centers, network closets, or rack-mounted setups. It streamlines network operations by supporting advanced management features such as SNMP, GUI, and CLI interfaces, and incorporates enterprise-level security capabilities like WPA2 and 802.1X. This makes it a reliable solution for organizations looking to efficiently control multiple access points and maintain a secure, scalable wireless network.
AIR-WLC2125-K9 price is $3,010.00, a 66.5% saving from the Cisco list price of $8,995.00. AIR-WLC2125-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for AIR-WLC2125-K9 for additional pricing. Browse the full Cisco Wlan Controller series or explore all Cisco products.
AIR-WLC2125-K9 Specifications
- Weight
- N/A
- Depth
- N/A
- Width
- N/A
- Memory
- N/A
- Max Range
- N/A
- Coverage Area
- N/A
- Connector Type
- RJ-45
- Antenna Gain
- N/A
- Security Features
- WPA2, 802.1X
- Compliance
- FCC, CE, RoHS
- Processor
- N/A
- Wi-Fi Standard
- 802.11a/b/g/n/ac
- Mesh Networking
- No
- Outdoor Use
- No
- Protocols Supported
- 802.11a/b/g/n/ac, Ethernet
- Beamforming
- N/A
- MIMO Technology
- N/A
- Ethernet Port
- 2x Gigabit
- Data Rate
- N/A
- Antenna Type
- N/A
- Product Type
- Wireless LAN Controller
- Wireless Type
- N/A
- Frequency Bands
- N/A
- Power Supply
- AC Adapter
- Mounting Options
- Rack Mount
- Max Number of Devices Supported
- Up to 75 APs / 1000 Clients
- Management Features
- On-Premises, SNMP, GUI, CLI
- Product Name
- AIR-WLC2125-K9 Wireless LAN Controller
- Height
- 1U Rackmount
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| AIR-WLC2125-K9 |  AIR-CT8510-HA-K9 |  AIR-WLC2112-K9 |  AIR-CT8510-100-K9 |  AIR-WLC2106-K9 | |
|---|---|---|---|---|---|
| Product Type | Wireless LAN Controller | Wireless Access Point | Wireless Controller | Wireless Access Point | Wireless LAN Controller |
| Wireless Type | N/A | Access Point | N/A | Access Point | N/A |
| Wi-Fi Standard | 802.11a/b/g/n/ac | Wi-Fi 5 | N/A | Wi‑Fi 5 (802.11ac) | N/A |
| Frequency Bands | N/A | 2.4GHz / 5GHz | N/A | 2.4GHz / 5GHz | N/A |
| Data Rate | N/A | 1Gbps | N/A | 1Gbps | N/A |
| Max Range | N/A | 120 meters | N/A | N/A | N/A |
| Coverage Area | N/A | N/A | N/A | N/A | N/A |
| Connector Type | RJ-45 | RJ-45 | RJ-45 | RJ-45 | RJ-45 |
| Antenna Type | N/A | Internal Omnidirectional | N/A | Omnidirectional | N/A |
| Antenna Gain | N/A | 5dBi | N/A | N/A | N/A |
| MIMO Technology | N/A | MU-MIMO | N/A | MU-MIMO | N/A |
| Beamforming | N/A | Yes | N/A | Yes | N/A |
| Mounting Options | Rack Mount | Ceiling Mount / Wall Mount | Rack Mount | Ceiling Mount / Wall Mount | Rack Mount / Wall Mount |
| Power Supply | AC Adapter | PoE | AC Adapter | PoE | AC Adapter |
| Mesh Networking | No | Yes | N/A | No | N/A |
| Ethernet Port | 2x Gigabit | 1x Gigabit | 2x Gigabit | 1x Gigabit | 2x Gigabit |
| Max Number of Devices Supported | Up to 75 APs / 1000 Clients | 250 | N/A | N/A | 75 Access Points |
| Protocols Supported | 802.11a/b/g/n/ac, Ethernet | 802.11a/b/g/n/ac | N/A | 802.11a/b/g/n/ac | 802.11a/b/g/n/ac |
| Management Features | On-Premises, SNMP, GUI, CLI | Cloud Management / On-Premises | Centralized Management, SNMP | Cloud Management / On-Premises | On-Premises / SNMP |
| Security Features | WPA2, 802.1X | WPA2 / WPA3 / 802.1X | WPA2, WPA3, 802.1X, VPN | WPA2 / WPA3 | WPA2 / WPA3 / 802.1X |
| Compliance | FCC, CE, RoHS | FCC / CE / RoHS | FCC, CE, RoHS | FCC / CE / RoHS | FCC / CE / RoHS |
| Processor | N/A | N/A | N/A | N/A | N/A |
| Memory | N/A | N/A | N/A | N/A | N/A |
| Outdoor Use | No | No | No | Yes | No |
| Product Name | AIR-WLC2125-K9 Wireless LAN Controller | AIR-CT8510-HA-K9 Wireless Access Point | AIR-WLC2112-K9 | AIR-CT8510-100-K9 | AIR-WLC2106-K9 |
| Height | 1U Rackmount | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | N/A | N/A | N/A |
| Depth | N/A | N/A | N/A | N/A | N/A |
| Weight | N/A | N/A | N/A | N/A | N/A |
| Wi‑Fi Standard |
Reviews & Ratings
P
Preston Whitfield
5
Reliable WLAN management and easy configuration process.
Q
Quentin Mitchell
5
Consistent connectivity across branch deployments.
R
Ryan Harper
4
Professional Cisco controller with solid uptime.
S
Scott Gallagher
5
Centralized control simplified wireless troubleshooting.
T
Trent Caldwell
4
Dependable performance for small enterprise networks.
Questions & Answers
What is the Cisco Air-WLC2125-K9 2100 Series WLAN Controller?
The Cisco Air-WLC2125-K9 is a compact 2100 Series WLAN controller that centralizes management, security, and policy enforcement for up to 25 Cisco lightweight access points.
How many access points can the Air-WLC2125-K9 manage?
The Air-WLC2125-K9 supports licensing and management for up to 25 Cisco lightweight access points.
What aggregate throughput does the 2100 Series controller deliver?
The 2100 Series controller delivers up to 2 Gbps of aggregate wireless throughput for demanding applications.
Which Cisco AP models are compatible with the Air-WLC2125-K9?
It is compatible with Cisco 802.11ac and 802.11n lightweight APs, including the 1700, 2700, 2800, and 3700 Series.
What wireless security features are integrated?
Built-in security includes WPA3, 802.1X authentication, rogue AP detection, spectrum intelligence, and advanced threat defense.
How does licensing work on the Air-WLC2125-K9?
Licensing is AP-based: the controller ships with 25 AP licenses and can be expanded by purchasing additional licenses.
Which management tools can I use with this controller?
You can manage it via the integrated web GUI, CLI or Cisco Prime Infrastructure for centralized monitoring and configuration.
Is the Air-WLC2125-K9 suitable for small and medium businesses?
Yes, it is ideal for SMBs requiring secure, scalable wireless networking for up to 25 access points.
Can the controller integrate with Cisco Identity Services Engine (ISE)?
Yes, full integration with Cisco ISE enables advanced policy enforcement, role-based access, and guest onboarding.
What high-availability options are available?
Supports N+1 redundancy with secondary standby controller failover to ensure uninterrupted wireless service.
What power and redundancy features are supported?
The controller uses standard AC power and supports an optional redundant power supply for mission-critical deployments.
How does it simplify wireless network deployment?
It centralizes AP provisioning, firmware upgrades, policy management and real-time troubleshooting in a single pane of glass.
What warranty and support options are included?
Includes a limited lifetime hardware warranty and 90-day software replacement; extended support available via Cisco SMARTnet.
How are software and firmware updates handled?
Updates are centrally managed through the controller’s GUI or CLI with one-click upgrade, staging, and rollback capabilities.
What environmental and compliance specifications apply?
Operates from 0–40 °C, 10–90% non-condensing humidity; complies with RoHS, FCC, CE, and NEC Class 1 Div 2 standards.
How can I scale beyond 25 access points in the future?
For larger deployments, you can migrate to higher-capacity Cisco controllers such as the Catalyst 3504 or 5520 Series.