Wi-Fi Standard: Wi-Fi 7 (802.11be); also supports 802.11a/b/g/n/ac/ax
Spatial Streams (MIMO): 2x2 MU-MIMO on each serving radio (2.4 GHz, 5 GHz, 6 GHz) plus one dedicated tri-band scanning radio
Aggregate Throughput: ~10.77 Gbps (10,777 Mb/s per one retailer; another lists 11,000 Mb/s total). Per-band figures vary by source and are unverified
Radios (bands): 3 serving radios (2.4 GHz, 5 GHz, 6 GHz) + 1 dedicated tri-band scanning radio + BLE/Zigbee radio
Uplink Port Speed: 1x 100M/1G/2.5G/5G/10GbE RJ-45 (multigigabit); 1x 1GbE auxiliary RJ-45 (per one retailer)
Max Clients: UNVERIFIED: one source cites 1536+ concurrent clients; another cites up to 512 clients per radio. Official Fortinet figure not retrieved
PoE Requirement: UNVERIFIED: 802.3bt per a Fortinet listing cited by a reseller; other sources state 802.3at or 802.3bt (PoE++). Max power draw listed as 26.1 W
Form Factor: Indoor ceiling/wall-mount access point (mount kits included per one retailer)
Other Ports/Interfaces: Bluetooth/BLE, USB Type-A, RS-232 serial console (per one retailer)
Management: Managed by FortiGate, FortiEdge Cloud, or FortiManager/SASE-managed deployments
Operating Temperature: 0u00b0C to 50u00b0C (per one retailer)
Note on 6 GHz: 6 GHz availability is subject to regional regulatory approval
Curation Review
✔ Pros:Tri-band Wi-Fi 7 with a dedicated scanning radio for continuous RF monitoring and security; 10GbE multigigabit uplink supports high-throughput wired backhaul; Integrated BLE and Zigbee radios support IoT/device-management use cases; Centrally managed through FortiGate, FortiEdge Cloud, or SASE, with unified policy and security across the Fortinet ecosystem; Multiple PoE options listed by sources reduce switch-port constraints when PoE-budget planning is done carefully
✘ Cons:Power standard is inconsistent across sources (802.3at, 802.3bt, PoE++), so PoE budget must be confirmed against Fortinet's official datasheet before deployment; Max client capacity is conflicting across sources (512 per radio vs. 1536+ total) and unverified; 6 GHz operation depends on regional regulatory approval; Only 2x2 streams per radio limits per-client peak throughput compared with 4x4 or higher Wi-Fi 7 APs; Best value depends on a Fortinet controller or subscription (FortiCare support is sold separately); Indoor-only form factor, so it is not suitable for outdoor or harsh environments; Street prices differ widely by region and reseller (eBay third-party listing excluded as an outlier)
Spatial Streams (MIMO): 4x4:4 on each of the three client radios (2.4 GHz, 5 GHz, 6 GHz); MU-MIMO and OFDMA supported
Aggregate Throughput: Up to 7.78 Gbps tri-radio aggregate (maximum over-the-air PHY/chipset frame rate, not per-client throughput)
Radios (bands): Tri-radio 4x4:4: 2.4 GHz client radio, 5 GHz client radio, 6 GHz client radio; plus tri-band scanning radio (2.4/5/6 GHz) for security/RF analytics and a 2.4 GHz Bluetooth Low Energy radio
Uplink Port Speed: 1x multigigabit RJ45 (100 Mbps / 1 Gbps / 2.5 Gbps / 5 Gbps BASE-T); also 1 USB 2.0 Type-A port
Max Clients: Not published in the sources reviewed
PoE Requirement: 802.3bt (UPOE) 30.5 W for full functionality including USB; 802.3at (PoE+) 25 W supported with reduced functionality and no USB; 802.3af not supported; 54 V DC option available
Form Factor: Indoor ceiling/wall-mount access point; omnidirectional (CW9166I) or directional (CW9166D1) antenna variants
Dimensions: 241.3 x 241.3 x 56.9 mm (CW9166I) / 57.9 mm height (CW9166D1); approx. 1.6 kg
✔ Pros:Tri-band Wi-Fi 6E with 4x4:4 on every client radio for high-density capacity; dedicated tri-band scanning radio for WIPS, spectrum analysis, and location analytics; multigigabit 5 Gbps uplink on a single RJ45 port; Bluetooth Low Energy radio for beacons and asset tracking; supports both Catalyst 9800 controller and Meraki cloud management; full functionality on 802.3bt PoE with USB output
✘ Cons:Full feature set requires 802.3bt (UPOE) power, and 802.3at operation reduces functionality; only one uplink port, so no link aggregation or redundancy; premium price compared with many Wi-Fi 6E APs; maximum client count is not published in available sources; Catalyst (CW9166I-B/-E) and Meraki (CW9166I-MR) SKUs are the same hardware under different management licences, which can confuse purchasing; end-of-sale/end-of-life status is unconfirmed and should be checked with Cisco