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Excellent enterprise WiFi coverage with stable throughput.
AIR-AP1840I-B-K9
Cisco Aironet AP1840I Series access point - B domain
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Name:
AIR-AP1840I-B-K9
- Description:
- Cisco Aironet AP1840I Series access point - B domain
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 614802223422
- Condition:
- Warranty:
- 3
- List Price:
$1,497.00
- Price:
$498.0066.7% off
Quantity:
1
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AIR-AP1840I-B-K9 Overview
AIR-AP1840I-B-K9 is a high-performance indoor Access Point engineered to deliver robust dual-band wireless connectivity across 2.4GHz and 5GHz frequencies while supporting the Wi-Fi 5 (802.11ac Wave 2) standard. With capabilities including data rates up to 1.3Gbps, MU-MIMO, and beamforming technology, this device offers seamless high-speed internet for dynamic environments such as large offices, educational institutions, and public venues.
AIR-AP1840I-B-K9 is designed for easy deployment with versatile mounting options like ceiling and wall mounts, and it utilizes PoE for simplified installation and centralized management. Built with enterprise-grade security protocols—supporting WPA2, WPA3, and 802.1X—and managed on-premises, this access point ensures reliable performance and secure connectivity for demanding indoor wireless networks.
AIR-AP1840I-B-K9 price is $498.00, a 66.7% saving from the Cisco list price of $1,497.00. AIR-AP1840I-B-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for AIR-AP1840I-B-K9 for additional pricing. Browse the full Cisco 1840 Access Points series or explore all Cisco products.
AIR-AP1840I-B-K9 Specifications
- Product Type
- Access Point
- Wireless Type
- Access Point
- Wi-Fi Standard
- Wi-Fi 5
- Frequency Bands
- 2.4GHz / 5GHz
- Data Rate
- 1.3Gbps
- Max Range
- N/A
- Coverage Area
- N/A
- Connector Type
- RJ-45
- Antenna Type
- Internal Omnidirectional
- Antenna Gain
- N/A
- MIMO Technology
- MU-MIMO
- Beamforming
- Yes
- Mounting Options
- Ceiling Mount / Wall Mount
- Power Supply
- PoE
- Mesh Networking
- No
- Ethernet Port
- 1x Gigabit
- Max Number of Devices Supported
- N/A
- Protocols Supported
- 802.11a/b/g/n/ac
- Management Features
- On-Premises
- Security Features
- WPA2 / WPA3 / 802.1X
- Compliance
- FCC / CE / RoHS
- Processor
- N/A
- Memory
- N/A
- Outdoor Use
- No
- Product Name
- Cisco Aironet 1840 Indoor Access Point
- Height
- 1.4 inches
- Width
- 8.3 inches
- Depth
- 8.3 inches
- Weight
- 1.4 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 AIR-AP1840I-B-K9 |  AIR-AP1840I-D-K9C |  AIR-AP1840I-I-K9C |  AIR-AP1840I-H-K9C |  AIR-AP1840I-F-K9 | |
|---|---|---|---|---|---|
| Antenna Gain | N/A | 3dBi | N/A | N/A | N/A |
| Antenna Type | Internal Omnidirectional | Omnidirectional | Internal Omnidirectional | Internal Omnidirectional | Omnidirectional |
| Beamforming | Yes | Yes | Yes | Yes | Yes |
| 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 | N/A | N/A | N/A | N/A | N/A |
| Data Rate | 1.3Gbps | 1Gbps | Up to 1.3Gbps | Up to 1.3Gbps | 1.3Gbps |
| Depth | 8.3 inches | N/A | 9.44 inches | N/A | N/A |
| Ethernet Port | 1x Gigabit | 1x Gigabit | 1x Gigabit | 1x Gigabit | 1x Gigabit |
| Frequency Bands | 2.4GHz / 5GHz | 2.4GHz / 5GHz | 2.4GHz / 5GHz | 2.4GHz / 5GHz | 2.4GHz / 5GHz |
| Height | 1.4 inches | N/A | 1.73 inches | N/A | N/A |
| MIMO Technology | MU-MIMO | MU-MIMO | MU-MIMO | MU‑MIMO | MU-MIMO |
| Management Features | On-Premises | On-Premises / SNMP | On-Premises | On‑Premises / SNMP | On-Premises / SNMP |
| Max Number of Devices Supported | N/A | N/A | N/A | N/A | N/A |
| Max Range | N/A | N/A | N/A | N/A | N/A |
| Memory | N/A | N/A | N/A | N/A | N/A |
| Mesh Networking | No | No | No | 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 | Cisco Aironet 1840 Indoor Access Point | AIR-AP1840I-D-K9C | AIR-AP1840I-I-K9C | Cisco Aironet 1840 Indoor Access Point | AIR-AP1840I-F-K9 |
| Product Type | Access Point | Wireless Access Point | Wireless Access Point | Wireless Access Point | Wireless Product |
| Protocols Supported | 802.11a/b/g/n/ac | 802.11a/b/g/n/ac / Ethernet | 802.11a/b/g/n/ac | 802.11a/b/g/n/ac | 802.11a/b/g/n/ac |
| Security Features | WPA2 / WPA3 / 802.1X | WPA2 / WPA3 / 802.1X | WPA2 / WPA3 / 802.1X | WPA2 / WPA3 / 802.1X | WPA2 / WPA3 / 802.1X |
| Weight | 1.4 lbs | N/A | 2.2 lbs | N/A | N/A |
| Wi-Fi Standard | Wi-Fi 5 | 802.11a/b/g/n/ac | Wi-Fi 5 | Wi‑Fi 5 | Wi-Fi 5 |
| Width | 8.3 inches | N/A | 9.44 inches | N/A | N/A |
| Wireless Type | Access Point | Access Point | Access Point | Access Point | Access Point |
| Wi‑Fi Standard |
Reviews & Ratings
J
James Prescott
5
Reliable AP1840I delivering predictable dual band performance.
K
Kevin Marshall
4
Smooth deployment and centralized configuration.
L
Leonard Hayes
5
Wave 2 speeds support demanding office applications.
M
Michael Reeves
5
Strong indoor signal and dependable uptime.
N
Nathan Clarke
5
Stable roaming and consistent connectivity.
O
Oliver Bennett
5
Professional grade access point suitable for mid size enterprises.
Questions & Answers
What is the Cisco Aironet AP1840I-B-K9 access point?
The Cisco Aironet AP1840I-B-K9 is a Wi-Fi 6 (802.11ax) indoor access point designed for high-density environments, delivering multi-gigabit performance and advanced RF features.
Which regulatory domain does the AP1840I-B-K9 support?
The AP1840I-B-K9 is factory-configured for the B regulatory domain (North America), ensuring compliance with local RF regulations.
What are the key features of the AP1840I-B-K9?
Key features include dual-band 4x4:4 MU-MIMO, OFDMA, Target Wake Time (TWT), Cisco CleanAir technology, integrated directional antennas, and Seamless Roaming.
Which Wi-Fi standard does the AP1840I-B-K9 support?
The AP1840I-B-K9 supports IEEE 802.11ax (Wi-Fi 6) with backward compatibility to 802.11ac/n/a/b/g standards.
What is the maximum aggregate throughput of the AP1840I-B-K9?
It delivers up to 3.6 Gbps in the 5 GHz band and up to 1.2 Gbps in the 2.4 GHz band, for a total aggregate of 4.8 Gbps.
Does the AP1840I-B-K9 support Power over Ethernet (PoE)?
Yes, it supports IEEE 802.3at PoE+ with a minimum power budget of 30 W, eliminating the need for separate power cabling.
How is the AP1840I-B-K9 physically mounted?
The AP1840I-B-K9 uses a universal ceiling or wall bracket, compatible with standard electrical boxes for quick, tool-less installation.
Which management platforms are compatible with the AP1840I-B-K9?
You can manage it via Cisco DNA Center, Cisco Prime Infrastructure, or a Cisco Catalyst 9800 Series wireless controller.
Does the AP1840I-B-K9 have integrated or external antennas?
It features integrated directional patch antennas optimized for corridor and open-area deployments.
What security features are included with the AP1840I-B-K9?
Built-in security includes WPA3 encryption, Secure Boot, Cisco Identity Services Engine (ISE) integration, MACsec, and rogue AP detection.
Is a software license required for the AP1840I-B-K9?
Basic connectivity is included; advanced analytics and automation require a Cisco DNA subscription license.
Which firmware version is recommended for the AP1840I-B-K9?
Use Cisco IOS XE 17.x or later to unlock full Wi-Fi 6 feature support and security enhancements.
How many client devices can the AP1840I-B-K9 support?
The AP1840I-B-K9 can handle up to 200 concurrent clients, leveraging MU-MIMO and OFDMA for efficient traffic management.
What is the typical coverage area of the AP1840I-B-K9?
It provides reliable coverage in open environments up to 50 meters radius; actual range varies with building materials and client density.
What use cases are ideal for the AP1840I-B-K9?
The AP1840I-B-K9 excels in high-density indoor use cases such as corporate offices, educational campuses, retail corridors, and hospitality venues.
What are the dimensions and weight of the AP1840I-B-K9?
The unit measures 216 × 216 × 35 mm and weighs approximately 620 grams, suitable for low-profile ceiling or wall mounts.
Does the AP1840I-B-K9 support wireless mesh networking?
Yes, it supports Cisco Unified Mesh, enabling flexible deployment without the need for wired Ethernet backhaul.