Wi-Fi Standard: 802.11ax (Wi-Fi 6); OFDMA, 1024-QAM, MU-MIMO, Target Wake Time, BSS Coloring; backward compatible with 802.11a/b/g/n/ac
Spatial Streams (MIMO): 4x4 on 2.4 GHz and 5 GHz radios; dedicated third radio is 2x2 dual-band
Aggregate Throughput: Not stated by Juniper. Sum of peak PHY rates on the two client radios is about 3,548 Mbps (2,400 Mbps 5 GHz + 1,148 Mbps 2.4 GHz); real-world throughput is lower
Radios (bands): Radio 1: 2.4 GHz 4x4 802.11ax (up to 1,148 Mbps); Radio 2: 5 GHz 4x4 802.11ax (up to 2,400 Mbps); Radio 3: dedicated dual-band 2x2 sensor (WIDS/WIPS, spectrum analysis, synthetic client testing, location analytics)
Uplink Port Speed: Eth0: 100/1000/2.5GBase-T (802.3bz), RJ45, PoE PD input; Eth1: 10/100/1000Base-T, RJ45, optional PoE PSE output (requires 802.3bt on Eth0)
Max Clients: Not confirmed. Juniper's published max-associated-client figure could not be retrieved; datasheet states support for up to 4 simultaneous MU-MIMO clients
PoE Requirement: 802.3at (PoE+) minimum; 802.3bt supported; 25.5 W needed for full functionality; 12V/3A DC power adapter option
Sensors / IoT: Temperature, humidity, and pressure sensors; one 8-pin port for digital I/O and 0 to +5V analog input
Form Factor: Indoor wall/ceiling-mount access point; exact dimensions and weight not confirmed from the sources reviewed
Curation Review
✔ Pros:Mist AI-driven cloud management and automation; Quick, straightforward setup and deployment; Dedicated third radio for security (WIDS/WIPS), location analytics, and spectrum monitoring without using client radios; 2.5GbE multi-gig uplink on Eth0 for higher-throughput backhaul; Built-in environmental sensors and an I/O port for IoT integration
✘ Cons:Expensive relative to many enterprise Wi-Fi 6 APs, and users frequently cite price; Wi-Fi 6 (802.11ax) only, with no 6 GHz / Wi-Fi 6E radio; Full functionality requires 25.5 W, so 802.3at-only power may limit capability; Eth1 can source PoE only when Eth0 gets 802.3bt power; Max client capacity not published in the sources reviewed; Some user reviews cite limited customization and hardware quality concerns
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