Spatial Streams (MIMO): 8 total: 2x2 DL/UL MU-MIMO on 2.4 GHz, 4x4 DL/UL MU-MIMO on 5 GHz, 2x2 DL/UL MU-MIMO on 6 GHz
Aggregate Throughput: Approx. 15 Gbps theoretical (derived by summing per-band peak PHY rates: 5.8 Gbps 6 GHz + 8.6 Gbps 5 GHz + 688 Mbps 2.4 GHz; not an official Ubiquiti aggregate figure)
Radios (bands): 3 bands: 2.4 GHz, 5 GHz, 6 GHz (6 GHz usable only in regions where permitted); up to 8 BSSIDs per radio
Uplink Port Speed: 1 x 1/2.5 GbE RJ45
Max Clients: 500+ (official)
PoE Requirement: PoE+ (44-57V DC input, 25W max power consumption); official page does not name 802.3at/bt explicitly and does not state whether a PoE injector is included
Coverage Area: 160 m2 (1,750 ft2)
Form Factor: Ceiling or wall mount (Pro Mount included), 206 mm diameter x 46 mm, 680 g
Price Basis: US list price $279.00 on store.ui.com; the same page also shows $307.00 labeled 'Surcharge incl.' (unexplained), which is used as price_max. Third-party listings vary widely, and one AU reseller listing shows $588 (likely AUD, excluded)
Curation Review
✔ Pros:Tri-band Wi-Fi 7 with 6 GHz support for high-density and low-latency environments; 8 spatial streams with 4x4 on 5 GHz for strong capacity; 2.5 GbE uplink above standard gigabit for wired backhaul; 500+ client capacity; dedicated spectral scanning engine for interference detection; PoE+ single-cable deployment at 25W; included mounting hardware for ceiling or wall; competitive US list price of $279 for a tri-band Wi-Fi 7 AP
✘ Cons:Single 2.5 GbE port with no 10 GbE option for high-throughput uplinks; PoE+ (25W) power budget limits use of higher-power features compared with 802.3bt-class APs; 6 GHz availability is restricted to approved countries; uplink and 2.4 GHz are limited compared with 5 GHz and 6 GHz capacity; PoE injector inclusion not stated; third-party pricing and availability vary significantly, and some listings show stock as sold out
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