Fortinet FAP-U431F-A is a FortiAP Tri-Radio wireless access point from Fortinet in an internal-antenna ceiling-mount form factor. It supports IEEE 802.11ax (Wi-Fi 6) operation with maximum data rates up to 4,804 Mbps and provides tri-band connectivity across the 2.4 GHz and multiple 5 GHz frequency ranges.

The unit incorporates PIFA antennas rated at approximately 4 dBi for the 2.4 GHz band and 6 dBi for the supported 5‑GHz channels spanning 5.150–5.850 GHz bands per regional compliance limits.​ Power options include PoE+ compatible Ethernet input through standard RJ45 interfaces..

Fortinet FAP-U431F-A:: Indoor Wireless UTP AP - Tri radio (2x 802.11 a/b/g/n/ac/ax, 4x4 MIMO and 1x 802.11 a/b/g/n/ac Wave 2, 2x2 MU-MIMO), internal antennas, 1x 10/100/1000/2500 Base-T RJ45, 1x 10/100/1000 Base-T RJ45, BT/BLE, 1x Type A USB, 1x RS-232 RJ45 Serial Port. Ceiling/wall mount kit included. For power order: 802.3at PoE injector GPI-130 or AC adapter SP-FAP43F-PA-X-5. This unit is not registrable on the FortiCloud - it is set up for local management only.