PACKETPERF

Primary Device

Cisco Catalyst 9166 Series (CW9166)
Cisco Catalyst 9166 Series (CW9166)
★ 4.2 Value Score

Technical Specifications

  • Wi-Fi Standard: 802.11ax (Wi-Fi 6E, 6 GHz capable); also 802.11a/b/g/n/ac backward compatible
  • 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
  • Management: Catalyst 9800 wireless controllers (IOS-XE) or Meraki cloud (CW9166I-MR / CW9166D1-MR SKUs)

Curation Review

  • ✔ 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

Cisco Catalyst CW9174
Cisco Catalyst CW9174
★ 3.5 Value Score

Technical Specifications

  • Wi-Fi Standard: Wi-Fi 7 (802.11be), backward compatible with 802.11ax/ac/n/a/g/b; 320 MHz channels on 6 GHz
  • Spatial Streams (MIMO): Tri-band mode: 10 SS total (2.4 GHz 2x2:2, 5 GHz 4x4:4, 6 GHz 4x4:4). Dual-band mode: 8 SS total (2.4 GHz 4x4:4, 5 GHz 4x4:4)
  • Aggregate Throughput: About 17.5 Gbps PHY aggregate (reseller figure; Cisco does not state an aggregate throughput in its published specs)
  • Radios (bands): Five radios: serving radios for 2.4 GHz (20 MHz), 5 GHz (20/40/80/160 MHz), 6 GHz (20/40/80/160/320 MHz); dedicated scanning radio; dedicated 2.4 GHz IoT radio. Dual-radio dual-band mode (5 GHz + 2.4 GHz) also supported; 6 GHz only where regionally permitted
  • Uplink Port Speed: 1x 5 Gig mGig PoE-IN RJ-45 (1G on 802.3af, 2.5G on 802.3at, 5G on 802.3bt/DC); plus USB 2.0 (9W on 802.3bt/DC, 2.5W on 802.3at), console, and DC 54V input
  • Max Clients: 768 total (256 per radio) per Cisco deployment guide
  • PoE Requirement: 802.3bt Class 5 (UPOE) or MA-PWR-50WAC DC supply for full 10-SS, 5G operation; 802.3at (30W max) gives 10 or 8 SS at 2.5G with reduced USB power; 802.3af gives 1x1 at 2.4 GHz only at 1G with 5/6 GHz disabled. Compatible injectors: CW-INJ-8, AIR-PWRINJ7, MA-INJ-6. AP power draw in watts not stated by Cisco
  • Form Factor: Indoor ceiling/wall-mount AP; 8.9 x 8.9 x 2.5 in (22.6 x 22.6 x 6.3 cm); CW9174I 3.36 lb (1.52 kg), CW9174E 3.26 lb (1.47 kg)
  • Antenna: CW9174I: internal omnidirectional (5 dBi 2.4 GHz, 5 dBi 5 GHz, 6 dBi 6 GHz). CW9174E: external DART-8 connectors with omni, directional patch, and RP-TNC dipole antenna options
  • Operating Temperature: CW9174I: 0 to 50 C; CW9174E: -20 to 50 C
  • Management: Catalyst 9800 WLC (IOS XE 17.18.2 or later), Catalyst Center (2.3.7.11 / 3.2.3 or later), or Meraki dashboard (MR 32.1.5 or later); embedded wireless controller mode not supported
  • Pricing Notes: No official Cisco list price published. Observed USD reseller prices roughly $1,140 to $1,170 for CW9174I-CFG and CW9174I-RTG (sale prices; reference/struck-through prices are higher). Confirm with Cisco price list or an authorized partner

Curation Review

  • ✔ Pros: Wi-Fi 7 with 320 MHz 6 GHz channels and MLO support; Tri-radio design with dedicated scanning radio and 2.4 GHz IoT radio for security and IoT workloads; Five-gigabit mGig uplink, faster than standard 2.5G APs at the same price tier; Flexible indoor (CW9174I) and external-antenna (CW9174E) models; Works with on-premises Catalyst 9800 WLC, Catalyst Center, or Meraki cloud depending on firmware; Lower price than the CW9176 and CW9178I tri-radio flagships
  • ✘ Cons: Only one 5 Gbps uplink, so there is no link aggregation for higher throughput; Full 10-stream, 5 Gbps performance requires 802.3bt (UPOE) or a DC power supply; 802.3at and 802.3af significantly reduce radio streams and USB power; Cisco publishes no aggregate throughput figure or list price; Max clients (768 total) is below the 1,200 of the CW9176/CW9178 models; CW9174E 6 GHz use is restricted to US/Canada standard power, so 6 GHz availability varies by region
  • Est. Price: $1,140 - $1,169

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