Uplink Port Speed: 1x 2.5GbE RJ45 (1G/2.5G auto-negotiation)
Max Clients: 300+ connected devices
PoE Requirement: 802.3at PoE+ (44-57V DC input), approx. 21 W typical draw
Curation Review
✔ Pros:Tri-band Wi-Fi 7 with 6 GHz support at a low entry price; 2.5GbE uplink lets it outrun standard gigabit wired backhaul; single-cable PoE+ power simplifies deployment; 300+ client capacity suits small-to-medium offices and homes; wall and ceiling mounts included; 2-year warranty; managed centrally through the UniFi controller ecosystem
✘ Cons:Only 2x2 MIMO per band, so it trails 4x4-class Wi-Fi 7 APs and the U7 Pro Max; no 10GbE uplink for high-throughput environments; requires a UniFi controller (UniFi OS or Network app) for full management; PoE+ budget leaves no headroom for power-hungry add-ons; street prices often sit above the $189 MSRP; no built-in PoE injector, so a PoE+ switch or injector is required
Est. Price:
$179 - $237
Compare Against
Cisco Catalyst 9166
★ 3.3 Value Score
Technical Specifications
Wi-Fi Standard: IEEE 802.11ax (Wi-Fi 6/6E); legacy 802.11a/b/g/n/ac also supported
Spatial Streams (MIMO): 4x4:4 on each of the three radios (2.4 GHz, 5 GHz, 6 GHz); 12 spatial streams total for MU-MIMO
Aggregate Throughput: 7.78 Gbps tri-radio PHY maximum (4x4 160 MHz on 6 GHz, 4x4 80 MHz on 5 GHz, 4x4 20 MHz on 2.4 GHz); Cisco notes this is a radio frame-rate capability and may exceed 802.11ax-allowed rates, so real-world throughput is lower
Radios (bands): Tri-radio: 2.4 GHz 4x4, 5 GHz 4x4 plus a secondary XOR radio, 6 GHz 4x4 (LPI); dedicated Bluetooth 5.1 (BLE) radio
Uplink Port Speed: 1x multigigabit Ethernet RJ-45 (100M/1G/2.5G/5G)
Max Clients: Not published in Cisco datasheet (Cisco states higher client density than typical enterprise APs, without a number)
PoE Requirement: 802.3bt (UPOE) 30.5 W for full operation (USB 4.5 W); 802.3at 25.5 W (no USB, reduced operation); 802.3af 14.0 W for configuration staging only with radios off; optional 54 V DC input via MA-PWR-50WAC
Form Factor: Indoor ceiling/wall-mount AP; 9.5 x 9.5 x 2.2 in (241.3 x 241.3 x 56.9 mm) for CW9166I; 3.54 lb (1.60 kg)
Management: On-premises (IOS XE / Catalyst 9800) or cloud via Meraki Dashboard (CW9166I-MR / CW9166D1-MR)
Curation Review
✔ Pros:Tri-band Wi-Fi 6E with dedicated 6 GHz radio for less congested high-capacity spectrum; Four 4x4 spatial streams per band with 7.78 Gbps tri-radio PHY capability; Multigigabit uplink up to 5 Gbps for higher aggregate throughput than 1 GbE APs; Dedicated Bluetooth 5.1 radio for IoT and asset-tracking use; Cisco Trust Anchor, Secure Boot and image signing for hardware-level security; Flexible management: on-premises Catalyst 9800 or cloud-managed Meraki variant; Directional (D1) and omni (I) antenna SKUs for different coverage designs
✘ Cons:Full performance requires 802.3bt (30.5 W) PoE; 802.3at switches limit USB and radio operation; Max client count is not published, so capacity planning relies on third-party or community estimates; Uplink tops out at 5 Gbps, which can bottleneck a 7.78 Gbps radio capability at high load; Price is high relative to many 802.11ax APs, with reseller prices spanning roughly $1,100 to $3,300; Multiple SKUs (I vs D1, -ROW/regional, IOS XE vs Meraki-MR) complicate ordering and comparison; Minimum IOS XE version differs by SKU and reseller listings conflict
