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Cisco Aironet AP1840I provides stable coverage and strong enterprise performance.
AIR-AP1840I-N-K9
Cisco Aironet AP1840I Series access point - N domain
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Name:
AIR-AP1840I-N-K9
- Description:
- Cisco Aironet AP1840I Series access point - N domain
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 996279666118
- Condition:
- Warranty:
- 3
- Price:
$1,467.00
Quantity:
1
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AIR-AP1840I-N-K9 Overview
AIR-AP1840I-N-K9 is a high-performance wireless access point engineered for indoor deployments, supporting dual-frequency operation on 2.4GHz and 5GHz bands with 802.11n connectivity. It delivers data rates up to 300Mbps and features SU-MIMO and beamforming technology, ensuring robust performance and enhanced signal quality across medium-density environments.
Designed for versatile installation, the AIR-AP1840I-N-K9 offers both ceiling and wall mounting options and is ideal for large offices, educational institutions, and retail spaces. With integrated Power over Ethernet (PoE) support, comprehensive on-premises management capabilities, and advanced security features such as WPA2 and 802.1X, this access point provides a scalable, secure solution for modern wireless networking needs.
AIR-AP1840I-N-K9 price is $1,467.00. AIR-AP1840I-N-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for AIR-AP1840I-N-K9 for additional pricing. Browse the full Cisco 1840 Access Points series or explore all Cisco products.
AIR-AP1840I-N-K9 Specifications
- Product Type
- Wireless Access Point
- Wireless Type
- Access Point
- Wi-Fi Standard
- 802.11n
- Frequency Bands
- 2.4GHz / 5GHz
- Data Rate
- 300Mbps
- Max Range
- N/A
- Coverage Area
- N/A
- Connector Type
- RJ-45
- Antenna Type
- Internal Omnidirectional
- Antenna Gain
- N/A
- MIMO Technology
- SU-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 / Ethernet
- Management Features
- On-Premises / SNMP
- Security Features
- WPA2 / 802.1X
- Compliance
- FCC / CE / RoHS
- Processor
- N/A
- Memory
- N/A
- Outdoor Use
- No
- Product Name
- AIR-AP1840I-N-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-AP1840I-N-K9 |  AIR-AP1840I-B-K9C |  AIR-AP1840I-S-K9C |  AIR-AP1840I-I-K9 |  AIR-AP1840I-T-K9C | |
|---|---|---|---|---|---|
| Antenna Gain | N/A | N/A | N/A | N/A | N/A |
| Antenna Type | Internal Omnidirectional | Omnidirectional | 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 | 300Mbps | 1Gbps | 1.3Gbps | Up to 1.3Gbps | 1Gbps |
| Depth | N/A | N/A | N/A | 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 | N/A | N/A | N/A | N/A | N/A |
| MIMO Technology | SU-MIMO | MU-MIMO | MU-MIMO | MU-MIMO | MU-MIMO |
| Management Features | On-Premises / SNMP | On-Premises / SNMP | On-Premises / SNMP | Cloud Management, On-Premises, SNMP | On-Premises |
| Max Number of Devices Supported | N/A | N/A | N/A | N/A | N/A |
| Max Range | N/A | 100 meters | 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 | AIR-AP1840I-N-K9 | AIR-AP1840I-B-K9C | AIR-AP1840I-S-K9C | AIR-AP1840I-I-K9 | Cisco Aironet 1840 Indoor Access Point |
| Product Type | Wireless Access Point | Wireless Product | Wireless Access Point | Wireless Product | Wireless Product |
| Protocols Supported | 802.11a/b/g/n / Ethernet | 802.11a/b/g/n/ac | 802.11a/b/g/n/ac | 802.11a/b/g/n/ac | 802.11a/b/g/n/ac |
| Security Features | WPA2 / 802.1X | WPA2 / WPA3 / 802.1X | WPA2 / 802.1X | WPA2, WPA3, 802.1X | WPA2 / WPA3 |
| Weight | N/A | N/A | N/A | N/A | N/A |
| Wi-Fi Standard | 802.11n | Wi‑Fi 5 | Wi-Fi 5 | Wi-Fi 5 | Wi-Fi 5 |
| 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
E
Edward Turner
4
Wave 2 speeds remain consistent across departments.
F
Franklin Brooks
5
Reliable indoor access point with seamless controller integration.
G
George Harrison
5
Predictable throughput and dependable roaming.
H
Henry Turner
4
Professional enterprise WiFi solution with minimal downtime.
I
Isaac Brooks
4
Strong signal strength and stable connectivity.
J
James Hayes
5
Ideal AP for mid sized enterprise deployments.
Questions & Answers
What is the Cisco Aironet AP1840I Series access point?
The Cisco Aironet AP1840I Series is a dual-band, 4x4 MU-MIMO indoor Wi-Fi 5 access point designed for high-density enterprise deployments, offering up to 2.5 Gbps aggregate throughput.
Which wireless standards does the AP1840I support?
The AP1840I supports IEEE 802.11ac Wave 2 and 802.11n standards on both 2.4 GHz and 5 GHz bands, delivering backward compatibility and improved performance.
What maximum data rates can I achieve with this access point?
You can achieve up to 1.73 Gbps on 5 GHz and 800 Mbps on 2.4 GHz, for a combined throughput of up to 2.5 Gbps.
How many clients can the AP1840I handle simultaneously?
The AP1840I is optimized for high-density environments and can support over 200 concurrent client associations with efficient MU-MIMO client scheduling.
What power options are available for the AP1840I?
The AP1840I supports IEEE 802.3at PoE+ and Cisco Universal PoE, requiring 12.95 W – 30 W depending on RF usage and integrated sensor options.
Does the AP1840I include integrated antennas?
Yes, the AP1840I features internal omnidirectional antennas with optimized patterns for consistent coverage in indoor spaces.
What enterprise security features are built into this access point?
The AP1840I includes WPA3, 802.1X authentication, MACsec, Cisco CleanAir interference detection, and Secure Boot for end-to-end security.
How is the AP1840I managed and configured?
You can manage the AP1840I via Cisco DNA Center, Cisco Prime Infrastructure, or a wireless LAN controller for centralized provisioning, monitoring, and troubleshooting.
What environments is the AP1840I best suited for?
The AP1840I is ideal for enterprise offices, classrooms, retail stores, and hospitality venues requiring high client density and robust performance.
What mounting options are available for installation?
The AP1840I supports ceiling T-rail, drywall, and wall-mount kits, with a compact design that simplifies placement and cable management.
Can the AP1840I support location and IoT services?
Yes, it includes Cisco Hyperlocation for sub-meter accuracy and supports BLE and Zigbee integration for IoT device tracking.
What is the warranty period for the AP1840I?
Cisco offers a limited lifetime warranty on the AP1840I hardware, including next-business-day advance replacement, with 90 days of software updates.
How does the AP1840I handle interference and spectrum management?
It leverages Cisco CleanAir technology to detect and classify RF interference in real time, automatically adjusting channels and power to maintain optimal performance.
Is the AP1840I compatible with third-party PoE switches?
Yes, the AP1840I can be powered by any IEEE 802.3at PoE+ compliant switch, providing installation flexibility without requiring Cisco switches.
What is the process for upgrading the AP1840I firmware?
You can upgrade firmware via Cisco DNA Center, Prime Infrastructure, or CLI—simply upload the image, schedule the update, and reboot; the AP will automatically apply the new software.