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Stable enterprise WiFi coverage and strong signal performance.
AIR-AP1840I-S-K9
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Cisco Aironet AP1840I Series access point - S domain
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AIR-AP1840I-S-K9
- Description:
- Cisco Aironet AP1840I Series access point - S domain
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 889728160551
- Condition:
- Warranty:
- 3
- Price:
$1,467.00
Quantity:
1
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AIR-AP1840I-S-K9 Overview
AIR-AP1840I-S-K9 is a high-performance indoor wireless access point engineered for enterprise environments. It operates on dual bands – 2.4GHz and 5GHz – and complies with the Wi‑Fi 5 (802.11ac) standard, delivering data rates of up to 1.3Gbps for uninterrupted voice, video, and data streaming. Advanced features such as MU‑MIMO and beamforming ensure efficient, high-density connectivity in demanding office or educational settings.
Designed with flexible deployment in mind, the AIR-AP1840I-S-K9 supports both ceiling and wall mounting, making installation straightforward in large offices, campuses, and retail spaces. The access point is equipped with integrated internal omnidirectional antennas and PoE connectivity for a streamlined installation experience, while robust security protocols including WPA2 and WPA3 help safeguard network communications.
AIR-AP1840I-S-K9 price is $1,467.00. AIR-AP1840I-S-K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for AIR-AP1840I-S-K9 for additional pricing. Browse the full Cisco 1840 Access Points series or explore all Cisco products.
AIR-AP1840I-S-K9 Specifications
- Product Type
- Wireless 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
- 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
- Cloud Management / On-Premises / SNMP
- Security Features
- WPA2 / WPA3 / 802.1X
- Compliance
- FCC / CE / RoHS
- Processor
- N/A
- Memory
- N/A
- Outdoor Use
- No
- Product Name
- AIR-AP1840I-S-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-S-K9 |  AIR-AP1840I-G-K9 |  AIR-AP1840I-K-K9 |  AIR-AP1840I-T-K9C |  AIR-AP1840I-D-K9 | |
|---|---|---|---|---|---|
| Antenna Gain | N/A | N/A | N/A | N/A | N/A |
| Antenna Type | Omnidirectional | Omnidirectional (Internal) | Internal Omnidirectional | 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 | Up to 1.3Gbps | 1Gbps | 1Gbps | 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 | MU-MIMO | MU-MIMO | MU-MIMO | MU-MIMO | MU-MIMO |
| Management Features | Cloud Management / On-Premises / SNMP | On-Premises / SNMP | Cloud Management / On-Premises / SNMP | On-Premises | 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 | N/A |
| 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-S-K9 | Cisco Aironet 1840I Wireless Access Point | Cisco AIR-AP1840I-K-K9 | Cisco Aironet 1840 Indoor Access Point | AIR-AP1840I-D-K9 |
| Product Type | Wireless Access Point | Wireless Access Point | Wireless Product | Wireless Product | Wireless Access Point |
| Protocols Supported | 802.11a/b/g/n/ac | 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 / WPA3 / 802.1X | WPA2 / WPA3 | WPA2 / WPA3 / 802.1X / VPN | WPA2 / WPA3 | WPA2 / 802.1X |
| Weight | N/A | N/A | N/A | N/A | N/A |
| Wi-Fi Standard | Wi-Fi 5 | Wi-Fi 5 (802.11ac Wave 2) | 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
T
Timothy Hayes
5
Wave 2 access point delivering predictable speeds.
V
Victor Harrison
4
Seamless roaming and dependable indoor connectivity.
W
Walter Brooks
4
Easy deployment and centralized management.
A
Anthony Turner
4
Reliable dual band performance in corporate rollout.
B
Brandon Harrison
5
Professional AP with consistent uptime.
C
Charles Brooks
4
Strong indoor signal and efficient configuration process.
Questions & Answers
What is the Cisco Aironet AP1840I-S-K9 access point designed for?
The Cisco Aironet AP1840I-S-K9 is a Wi-Fi 6 access point optimized for high-density enterprise deployments, offering enhanced throughput, security, and scalability in the S domain.
Which Wi-Fi standard does the AP1840I support?
The AP1840I supports the IEEE 802.11ax (Wi-Fi 6) standard, delivering up to 2.4 Gbps aggregate data rates and improved multi-user performance.
How many spatial streams and radios are available on the AP1840I?
The AP1840I features two radios, each supporting 4x4 MU-MIMO spatial streams, enabling simultaneous communication with multiple devices.
What wired interfaces does the Cisco Aironet AP1840I include?
The AP1840I provides two 1 Gbps Ethernet ports with link aggregation and PoE/PoE+ support for redundant power and uplink connectivity.