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
Est. Price:
$1,136 - $3,317
Compare Against
Juniper Networks AP45
★ 3.4 Value Score
Technical Specifications
Wi-Fi Standard: Wi-Fi 6E (802.11ax); backward compatible with 802.11a/b/g/n/ac
Spatial Streams (MIMO): 4x4:4 802.11ax on each data radio (2.4, 5, and 6 GHz); SU-MIMO and MU-MIMO. 802.3at power limits 4x4 to two data radios at once
Aggregate Throughput: 9.6 Gbps total PHY (6 GHz: 4.8 Gbps, 5 GHz: 2.4 Gbps, 2.4 GHz: 1.148 Gbps); some resellers list 8.15 Gbps
Radios (bands): 4 radios: 2.4 GHz, 5 GHz, and 6 GHz data radios plus a dedicated 2.4/5/6 GHz scanning radio
Uplink Port Speed: 2 Ethernet ports: 1x 5GbE multigigabit (802.3bt PoE) and 1x 1GbE
Max Clients: 512 per radio
PoE Requirement: 802.3bt (29.3 W for full functionality); 802.3at operates with reduced radio configuration
Bluetooth / IoT: Virtual BLE in 6 GHz, Bluetooth 5.0, directional and omnidirectional BLE antenna array, IoT support
✔ Pros:Tri-band Wi-Fi 6E with 4x4 MU-MIMO on every data radio; Dedicated scanning radio for RF monitoring and security; High aggregate PHY rate of 9.6 Gbps; 512 clients per radio suits high-density venues; 5GbE multigigabit uplink supports multi-gig backhaul; Virtual BLE and IoT support without a separate BLE radio; Cloud management and AI-driven operations through Juniper Mist
✘ Cons:Full functionality requires 802.3bt PoE, so 802.3at switches reduce radio capability; Premium price relative to many Wi-Fi 6E access points; Cloud management depends on a Juniper Mist subscription, and the 5-year bundles add substantial cost; Indoor-only design with no external-antenna option on the base AP45; Regional SKUs (such as AP45-US) limit deployment to specific regulatory domains; Juniper does not publish an official USD MSRP, so street prices vary widely by reseller and bundle