Wi-Fi Standard: IEEE 802.11a/b/g/n/ac/ax (Wi-Fi 6 R2 and Wi-Fi 6E certified; no Wi-Fi 7)
Spatial Streams (MIMO): 4x4 on each radio (2.4 GHz, 5 GHz, 6 GHz); 4x4 UL/DL MU-MIMO
Aggregate Throughput: Up to 7.78 Gbps PHY per radio (6 GHz 4x4 160 MHz peak); Cisco publishes no combined tri-radio total
Radios (bands): Three 4x4 radios: 2.4 GHz, 5 GHz, 6 GHz (LPI); dual-band XOR radio (6 GHz or secondary 5 GHz); integrated BLE 5.1 and IoT radios; dedicated scanning radio for security and RF management
Uplink Port Speed: 1x multigigabit RJ-45 at 100M/1G/2.5G/5G; management console RJ-45; USB 2.0 (4.5 W)
Max Clients: Not stated by Cisco; some reseller listings cite about 1200 for the CW9166D1 (unverified)
PoE Requirement: 802.3bt (UPOE) 30.5 W max for full functionality with USB; 802.3at (PoE+) 25.5 W max without USB; 802.3af (14 W) for staging only with radios off; optional 54 V DC input (MA-PWR-50WAC)
Dimensions and Weight: CW9166I: 9.5 x 9.5 x 2.2 in, 3.54 lb; CW9166D1: 9.5 x 9.5 x 2.28 in, 3.50 lb
Models: CW9166I-x and CW9166D1-x (on-premises, IOS-XE); CW9166I-MR and CW9166D1-MR (Meraki cloud-managed)
Minimum Software: IOS-XE 17.9.1 (CW9166I) and 17.12.1 (CW9166D1), per third-party sources
Curation Review
✔ Pros:Tri-band Wi-Fi 6E with 4x4 on 2.4, 5 and 6 GHz; 6 GHz access adds clean spectrum for high-density deployments; Dedicated scanning radio supports continuous RF monitoring, security and WIPS; Choice of internal omnidirectional (CW9166I) or directional (CW9166D1) antennas; Supports Cloud management via Meraki (-MR SKUs) or on-premises IOS-XE; WPA3-R3, WPA3 Suite B and Enhanced Open security; Single 2.5G multigigabit uplink works with standard 802.3at/bt PoE
✘ Cons:Wi-Fi 6E only, with no Wi-Fi 7 (802.11be) support; Full feature set needs 802.3bt (UPOE), so 802.3at switches cannot power every feature; Only one uplink port, with no link aggregation or redundancy; Cisco publishes no max client count, so capacity planning relies on estimates; Regional suffixes and regulatory approvals vary, so some SKUs may not be approved for every country; Premium price, with list MSRP about $2,500 and reseller prices often well below it
Est. Price:
$1,299 - $2,694
Compare Against
Ubiquiti UniFi U7 Pro
★ 5.0 Value Score
Technical Specifications
Wi-Fi Standard: Wi-Fi 7 (802.11be), tri-band
Spatial Streams (MIMO): 6 total; 2x2 MIMO per band (2.4 GHz, 5 GHz, 6 GHz)
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
