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Fortinet FortiAP HD-441K
Indoor ultra high density: four Wi-Fi 7 radios at 4x4, 21.3 Gbps aggregate and two 10 Gigabit uplinks.
- Four 4x4 Wi-Fi 7 service radios plus a dedicated 2x2 scanning radio
- 21.3 Gbps aggregate PHY rate with 2 x 10 Gbps of backhaul
- 512 clients per radio and 180+ active devices at 1 Mbps each
- 320 MHz channel support on 6 GHz with 4096 QAM
- ZeroWait DFS - no dead air when radar is detected
Hardware & subscription options
Every orderable Fortinet part number for this appliance, grouped by licensing tier. Pick the line you need and we will quote it — hardware, licence term and support in one place.
Appliance Only
The FortiGate hardware on its own, with no FortiCare or FortiGuard contract attached.
Fortinet FortiAP HD-441K Appliance
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Fortinet FortiAP HD-441K Access Point FortiAP-HD-441K Indoor Wireless AP - 4 radios (Wi-Fi 7 Tri-band 2.4/5/6GHz 4+4+4 4 streams 4 radios), internal antennas, 2x 10G Base-T RJ45, BT/BLE, 1x Type A USB, 1x RS-232 RJ45 Serial Port. Ceiling/wall mount kit included. For power order: 802.3bt PoE injector. Region Code A. #FAP-HD-441K-AGet a Quote
Accessories and Spares
Power adapters, rack trays and other hardware sold alongside the appliance.
Fortinet Accessories and Spares
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Fortinet Multi-Gigabit PoE Power Injector, 802.3bt up to 60 W #GPI-145Get a Quote
FortiCare Support
Support contracts for the access point: ticket handling, hardware replacement and firmware upgrades.
Fortinet FortiCare Support (Service Subscription - Hardware Required)
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Fortinet FortiCare Premium Support for FortiAP HD-441K - 1 Year #FC-10-H441K-247-02-12Get a Quote
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Fortinet FortiCare Premium Support for FortiAP HD-441K - 3 Year #FC-10-H441K-247-02-36Get a Quote
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Fortinet FortiCare Premium Support for FortiAP HD-441K - 5 Year #FC-10-H441K-247-02-60Get a Quote
Cloud Management and Services
FortiSASE cloud management for the access point, and the FortiGuard UTP subscription for G-series models.
Fortinet Cloud Management and Services (Service Subscription - Hardware Required)
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Fortinet FortiAP-HD WLAN Controller - WMS High Density Software, per site #LIC-WMS-HD-SWGet a Quote
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Fortinet FortiCare Premium Support for the FortiAP-HD WLAN Controller - 1 Year #FC-10-HDWMS-248-02-12Get a Quote
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Fortinet FortiCare Premium Support for the FortiAP-HD WLAN Controller - 3 Year #FC-10-HDWMS-248-02-36Get a Quote
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Fortinet FortiCare Premium Support for the FortiAP-HD WLAN Controller - 5 Year #FC-10-HDWMS-248-02-60Get a Quote
What each FortiCare and FortiGuard option includes
Fortinet licensing separates the hardware, the support contract and the security services. These are the combinations you will see in the part numbers above.
Hardware plus FortiCare Premium and FortiGuard Enterprise Protection
Hardware unit, FortiCare Premium ticket handling, advanced hardware replacement (NBD), firmware and general upgrades, and the Enterprise services bundle - IPS, AI-based inline malware prevention, advanced malware protection, inline CASB database, data loss prevention, application control, URL, DNS and video filtering, antispam, attack surface security, and FortiConverter Service - for the term of the contract.
Hardware plus FortiCare Premium and FortiGuard Unified Threat Protection (UTP)
Hardware unit, FortiCare Premium ticket handling, advanced hardware replacement (NBD), firmware and general upgrades, and the UTP services bundle - IPS, AV, botnet IP and domain, mobile malware, FortiGate Cloud Sandbox including virus outbreak and content disarm and reconstruct, application control, URL, DNS and video filtering, and antispam - for the term of the contract.
Enterprise Protection
FortiCare Premium ticket handling, advanced hardware replacement (NBD), firmware and general upgrades, and the Enterprise services bundle: IPS, AI-based inline malware prevention, advanced malware protection, inline CASB database, data loss prevention, application control, URL, DNS and video filtering, antispam, attack surface security, and FortiConverter Service.
Unified Threat Protection (UTP)
FortiCare Premium ticket handling, advanced hardware replacement (NBD), firmware and general upgrades, and the UTP services bundle: IPS, AV, botnet IP and domain, mobile malware, FortiGate Cloud Sandbox including virus outbreak and content disarm and reconstruct, application control, URL, DNS and video filtering, and antispam.
Advanced Threat Protection (ATP)
FortiCare Premium ticket handling, advanced hardware replacement (NBD), firmware and general upgrades, and the Advanced Threat Protection bundle: IPS, AV, botnet IP and domain, mobile malware, FortiGate Cloud Sandbox including virus outbreak and content disarm and reconstruct, and application control.
FortiCare Essential Support
FortiCare Essential ticket handling, hardware replacement, firmware and general upgrades, and application control.
FortiCare Premium Support
FortiCare Premium ticket handling, advanced hardware replacement (NBD), firmware and general upgrades, and application control.
FortiCare Elite Support
FortiCare Premium support with FortiCare Elite ticket handling.
Some services are sold on annual contracts only, with no multi-year part number available. We confirm the available terms when we quote.
Upgrading or extending an existing FortiCare contract is quoted separately - send us the serial number and we will price the upgrade.
Fortinet FortiAP HD-441K Specifications
Fortinet published maximums, measured under the test conditions noted below.
Hardware
| Type | Indoor high density AP |
|---|---|
| Number of Radios | 4 Wi-Fi + 1 BLE |
| Radios | Radio 1: 2.4 GHz. Radio 2: 5.0 GHz. Radio 3: 6.0 GHz. Radio 4: 2.4/5.0/6.0 GHz scanning. |
| MIMO Streams per Radio | 2.4 GHz 4x4, 5 GHz 4x4, 6 GHz 4x4, scanning radio 2x2 |
| Interfaces | 2 x 100M/1000M/2.5G/5.0G/10G multigigabit Ethernet (RJ45), 1 x Type 3.0 USB at 4.5 W, 1 x RS-232 RJ45 serial port |
| Power over Ethernet | LAN1 802.3bt, LAN2 802.3bt |
| Trusted Platform Module (TPM) | Yes |
| Diagnostic LEDs | Power, radios, LAN |
| Kensington Lock | Yes |
Performance and Capacity
| Maximum Associated Devices | Up to 512 clients per radio (radios 1, 2 and 3) |
|---|---|
| Active Devices | Up to 180+ with up to 1 Mbps per device |
| Peak PHY Rates | 6 GHz 4,804 Mbps (MCS13, 320 MHz); 5 GHz 2,402 Mbps (MCS13, 240 MHz); 2.4 GHz 1,201 Mbps (MCS11, 40 MHz) |
| Total Aggregate PHY Rate | 21.3 Gbps |
| Backhaul | 2 x 10 Gbps |
| Maximum Data Rate | 2.4 GHz up to 1.148 Gbps, 5 GHz up to 8.648 Gbps, 6 GHz up to 11.530 Gbps |
Radios
| Radio 1 (2.4 GHz) | 20/40 MHz, BPSK/QPSK/64/256/1024 QAM, 4x4 service |
|---|---|
| Radio 2 (5 GHz) | U-NII-1 to U-NII-4, 20/40/80/160/240 MHz, up to 4096 QAM, 4x4 service |
| Radio 3 (6 GHz) | U-NII-5 to U-NII-8, 20/40/80/160/320 MHz, up to 4096 QAM, 4x4 service |
| Radio 4 (scanning, 2.4/5/6 GHz) | 20/40/80/160 MHz, 2x2 scanning |
| Channelization | 2.4 GHz 2400-2495 MHz; 5 GHz 5150-5250 and 5725-5850 MHz; 6 GHz 5925-6425, 6425-6525, 6525-6875 and 6875-7125 MHz |
| Maximum Tx Power (conducted) | 2.4 GHz 29 dBm / 794 mW (4 chains combined), 5 GHz 27.8 dBm / 602 mW (4 chains combined), 6 GHz 23 dBm / 200 mW (4 chains combined at 160 MHz BW) |
| Rx Sensitivity | -147 dBm |
| Maximum Physical Antenna Gain | 2.4 GHz 4.0 dBi, 5 GHz 5.6 dBi, 6 GHz 5.4 dBi |
| Bluetooth Low Energy | Bluetooth scanning and iBeacon advertisement at 10 dBm maximum Tx power |
| GNSS | GPS, GLONASS, BDS and Galileo with QZSS, 47 tracking channels, WAAS, EGNOS, MSAS and GAGAN |
Advanced 802.11 Features
| OFDMA | Yes |
|---|---|
| Spatial Reuse (BSS Colouring) | Yes |
| UL MU-MIMO | Yes |
| DL MU-MIMO | Yes |
| Enhanced Target Wake Time (TWT) | Yes |
| ZeroWait DFS | Yes |
| IPv6 Support | Yes |
| UTP Capable | Yes |
| UTP Features | Application control and web filtering |
| Cellular Co-existence | Yes |
Wireless and Traffic Management
| Standards | 802.11e QoS, 802.11k RRM, 802.11r Fast BSS transition (FT), 802.11v Wireless Network Management, 802.11ae Prioritization of Management Frames |
|---|---|
| Wireless and Traffic Features | Airtime fairness, client load balancing, dynamic radio management per client, radio and AP |
| Security | WPA, WPA2, WPA3 (802.1x or pre-shared key), WEP, web captive portal. Encryption AES, CBC, CCM, CCMP128/256. |
Wireless Monitoring
| Rogue Scan Radio Modes | Background, dedicated |
|---|---|
| WIPS / WIDS Radio Modes | Background, dedicated (recommended) |
| Packet Sniffer Mode | Yes |
| Spectrum Analyzer | Yes |
Management
| Managed By | FortiGate, FortiEdge Cloud or FortiSASE - no separate wireless controller |
|---|---|
| Simultaneous SSIDs | Up to 24 |
| SSID Types Supported | Local-Bridge, Mesh and Tunnel |
| EAP Types | EAP-TLS, EAP-TTLS/MSCHAPv2, PEAPv0/EAP-MSCHAPv2, PEAPv1/EAP-GTC, EAP-SIM, EAP-AKA, EAP-FAST |
| User and Device Authentication | WPA, WPA2 and WPA3 with 802.1x or pre-shared key, WEP, web captive portal, MAC blacklist and allowlist |
Dimensions
| Length x Width x Height | 9.84 x 9.84 x 2.26 in (250 x 250 x 57.5 mm) |
|---|---|
| Weight | 4.36 lbs (1.98 kg) |
| Package (shipping) Weight | 6.9 lbs (3.13 kg) |
| Mounting Options | Ceiling, T-rail and wall |
| Included Accessories | Standard mounting kit for ceiling, T-rail and wall |
Power and Environment
| Maximum Input Power | 48 W |
|---|---|
| Maximum PoE Power Consumption | 41.7 W |
| Input PoE Power Requirement | 802.3bt (GPI-145) |
| DC Power Requirements | 12 V, 4 A (SP-FAP250-PA-10) |
| CPU / RAM | Quad-core ARM Cortex-A73 at 2.2 GHz / 2 GB |
| Humidity | 5% to 90% non-condensing |
| Operating Temperature | 32-122 F (0-50 C) |
| Storage Temperature | -22-158 F (-30-70 C) |
| Hitless PoE Failover | Yes |
Certifications
| Wi-Fi 7 Certified | Certified |
|---|---|
| DFS | Europe, FCC, Japan, Australia, Brazil, Taiwan, South Korea, India |
| Regulatory and Safety | FCC Subpart B and Subpart C Part 15.247, Subpart E 15.407, CE EN300.328, EN301.893, EN 50385, EN 55032, EN 55024 |
| UL2043 Plenum Material | Yes |
| Limited Lifetime Warranty | Yes |
| Mean Time Between Failures | More than 10 years |
Specifications are from Fortinet’s September 2026 FortiAP High Density series datasheet.
The High Density range is the exception to the rest of FortiAP: it runs under the FortiAP-HD WLAN controller, licensed per site as LIC-WMS-HD-SW. That licence is listed below and is needed in addition to the access points.
This is the only FortiAP here with ZeroWait DFS, so a radar detection does not take the channel out of service.
The 6 GHz band is not available in every regulatory domain and its use is subject to regional regulatory approval.
FortiCare Essential is sold as a renewal only on FortiAP and cannot be bought with new hardware.
Part numbers are Fortinet catalogue SKUs listed for reference. Availability, term and lead time are confirmed at quote.
FortiAP HD-441K
Indoor ultra high density: four Wi-Fi 7 radios at 4x4, 21.3 Gbps aggregate and two 10 Gigabit uplinks.
Ultra High Density, Indoors
The HD-441K is the indoor member of the High Density range, built for stadium concourses, convention halls, auditoriums and transport hubs where the client count per square metre breaks an ordinary access point. Four 4x4 Wi-Fi 7 service radios give it 21.3 Gbps of aggregate PHY rate, a fifth radio scans continuously without taking capacity away, and two 10 Gigabit uplinks carry the result.
ZeroWait DFS and Assisted Roaming
Unlike the rest of the FortiAP range this model supports ZeroWait DFS, which means a radar detection does not take the channel out of service while the AP waits out the mandatory quiet period. Combined with 802.11k/r/v assisted roaming and multi-radio client load balancing, that is what keeps a dense crowd of moving clients connected rather than merely associated.
Managed From the Firewall, Not a Controller
A FortiAP has no separate controller to buy, licence or patch. It is managed from a FortiGate, from FortiEdge Cloud or through FortiSASE, which means the wireless policy and the security policy are configured in the same place and the access point is part of the Security Fabric rather than a device bolted on beside it. For a site that already runs a FortiGate, adding wireless is adding an access point and nothing else.
Interested in the Fortinet FortiAP HD-441K?
Simply tell us your deployment needs and we will confirm availability, lead time and licence type, then get back to you with a quote.
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