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White square indoor Wi-Fi 6 access point with 13 internal antennas

Fortinet

Fortinet FAP-831F-A Wi-Fi 6 access point

SKU CH-6S1M-N1KKK MPN FAP-831F-A

Tri-radio indoor access point with 13 internal antennas delivers Wi-Fi 6 speeds up to 1.147 Gbps on 2.4 GHz and 4.8 Gbps on 5 GHz while scanning both bands continuously

  • Interface type1x 100/1000/2500/5000 Base-T RJ45 1 × 10/100/1000 Base-T RJ4
  • Wi-Fi standardWi-Fi 6
  • Number of usersup to 512 clients per radio
  • Supported standardsIEEE 802.11ax
  • Wireless speedUp to 1.147 Gbit/s+4.8 Gbit/s
  • Antenna configuration13 Internal Antennas Details: 4x 2.4 GHz band WiFi + 8x 5 GH

Model FAP831FA

  • Enterprise throughput with Wi‑6 tri‑radio design delivering up to 4.8 Gbps
  • 13 internal antennas enable 8×8 MU‑MIMO for dense client environments
  • 24 simultaneous SSIDs segment traffic across local‑bridge mesh and tunnel modes
  • Dedicated scanning radio monitors both bands 24/7 while users stay connected
  • 5 Gbps and 1 Gbps Ethernet ports plus PoE diversity for resilient wired uplinks

FortiAP 831F Indoor Access Point

The FortiAP 831F is an enterprise-class Wi-Fi 6 indoor access point with three radios and eight spatial streams. It supports up to 512 clients per radio and delivers wireless data rates of 1.147 Gbps on the 2.4 GHz band and 4.8 Gbps on the 5 GHz band. Thirteen internal antennas provide coverage for high-density environments.

Suited for high-density enterprise deployments

This access point suits organisations that require continuous dual-band scanning for security monitoring while serving clients on both 2.4 GHz and 5 GHz bands. It also supports BLE beacon and locationing applications. Buyers who need outdoor-rated hardware or a unit that includes a power supply should consider other options.

Three-radio tri-band design with dedicated scanning

The defining specification is the three-radio architecture: a 4x4 2.4 GHz radio, an 8x8 5 GHz radio and a dedicated 1x1 scanning radio. This allows simultaneous client access and full-time spectrum analysis without a separate sensor. Uplink connectivity uses a 5 Gbps RJ45 port and a second 1 Gbps RJ45 port for PoE diversity.

How it compares

Measured against everything we stock in Wi-Fi Access Points, at today’s prices. Recalculated every night.

Price $667.99
Pricier than about 72% of the 782 comparable items (median $253.99).

Specifications

Product
Brand nameFortinet
Product lineFortiAP
Model nameFortiAP 831F
Part numberFAP-831F-A
Product colorWhite
Connectivity
Wi-Fi standardWi-Fi 6
Supported standardsIEEE 802.11ax
Wireless speedUp to 1.147 Gbit/s+4.8 Gbit/s
Antenna configuration13 Internal Antennas
Details: 4x 2.4 GHz band WiFi + 8x 5 GHz band WiFi + I Dual band Scanning + 1x 2.4 GHz band BLE
Transmit powerRadio 1: 2.4 GHz 27 dBm / 500 mW (4 chains combined)
Radio 2: 5 GHz 25.5 dBm / 354 mW (4 chains combined)
Radio 3: NA
Ports & slots
Interface type1x 100/1000/2500/5000 Base-T RJ45
1 × 10/100/1000 Base-T RJ45
1x Type 3.0 USB, 1x RS-232 RJ45 Serial Port
Power
Power supplySP-FAP400-PA-XX or GPI-130 (not included)
Max power draw33 W
Size & build
Mounting optionsIndoor
Product dimensions9.05 × 89.05 × 2.15 in (230 × 230 × 55 mm)
Product weight2.25 lb (1.02 kg)
Shipping weight3.18 kg
Package size305 × 305 × 152 mm
More details
Number of usersup to 512 clients per radio
Multiple ssidsSSID Types Supported: Local-Bridge, Mesh, Tunnel
Simultaneous SSIDs: Up to 24
MIMORadio 1 MIMO Chains: 4 × 4 service
Radio 2 MIMO Chains: 8 × 8 service in mode 1 or 4 × 4+4 × 4 service in mode 2
Radio 3 MIMO Chains: 1 × 1 frequency scanning

Other versions of this model

4 more in the same range

Questions about this item

Should I pick the single 831F-A model or are there other capacities in this series?

The FAP-831F-A is a single SKU; there are no alternate capacity versions listed for this model.

What does the 1.147 Gbps plus 4.8 Gbps wireless data rate mean when the AP is mounted in an office?

Those are the peak PHY rates for the 2.4 GHz and 5 GHz radios respectively; real-world throughput will be lower due to overhead, interference and client capabilities.

How does the 5.0 Gigabit Ethernet port limit the wired uplink speed?

The 5 Gbps RJ45 port caps the wired backhaul at 5 Gbps; the second RJ45 port provides a 1 Gbps PoE diversity link.

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