Рассмотрим таблицу какие точки подходят для сетей высокой плотности
| 1850 Series | 2800 Series | 3800 Series | |
| Best for | Small to midsize networks | High-density, midsize to large networks | Mission critical, high density, large size networks |
| Features | 802.11ac Wave 2 radio, 4×4 multiple input, multiple output (MIMO), 4 spatial streams | 802.11ac Wave 2 radio, 3×4 MIMO, 3 spatial streams | 802.11ac Wave 2 radio, 4×4 MIMO, 3 spatial streams |
| Antennas | Internal & external | Internal & external | Internal & external |
| HDX support | No | Yes | Yes |
| CleanAir | No | Yes | Yes |
| Spectrum Analysis | Yes | Yes | Yes |
| ClientLink | No (standards-based TxBF) | Yes (4.0) | Yes (4.0) |
| Combined Data Rate | 2 Gbps | 5 Gbps | 5 Gbps |
По ссылке здесь о HDX https://www.cisco.com/c/dam/en/us/products/collateral/interfaces-modules/aironet-access-point-module-802-11ac/at-a-glance-c45-731218.pdf
и здесь
https://www.cisco.com/c/en/us/solutions/collateral/enterprise-networks/802-11ac-solution/white-paper-c11-731923.html
Опишу термины:
802.11ac Wave 2
MIMO
HDX
Spectrum Analysis
Combined Data Rate
ClientLink
CleanAir
WLC