Specification Sheet

4
Datasheet
802.11ac Technology
Initial 802.11ac Wave 1 SU-MIMO (Single-User,
Multiple Input, Multiple Output) technology allows an
earlier-generation AP, such as the UniFi AC Pro AP, to
communicate with only one client at a time.
802.11ac Wave 2 MU-MIMO (Multi-User, Multiple Input,
Multiple Output) technology allows a Wave 2 AP, such as
the UniFi HD AP, to communicate with multiple clients
at the same time – signicantly increasing multi‑user
throughput and overall user experience.
The following describes a 5-client scenario:
MU-MIMO Assuming the same conditions, a Wave 2 AP
provides up to 75% improvement
1
overall over a Wave1
AP. This improvement increases wireless performance
and/or serves more clients at the same performance level.
4x4 Spatial Streams At any single time, a Wave 2 AP can
communicate with the following MU-MIMO clients:
• four 1x1 clients
• two 2x2 clients
• one 2x2 client and two 1x1 clients
• one 3x3 client and one 1x1 client
A 4x4 Wave 2 AP delivers up to 33% greater performance
1
than a Wave 1 AP that is 3x3 in both radio bands.
Real-World Performance The UniFi HD AP is the rst
UniFi 802.11ac Wave 2 AP. Combining the performance
increases from MU-MIMO technology and the use of
4x4 spatial streams, the UniFi HD AP delivers up to 125%
greater performance
1
than a typical Wave 1 AP.
Client Compatibility For optimal performance, use
MU‑MIMO clients. SU‑MIMO clients will also benet and
gain up to 10-20% greater performance when used with
the UniFi HD AP.
¹ Actual performance values may vary depending on environmental and
installation conditions.
Single-Client Aggregate Throughput
56%
Improvement
UniFi AC Pro AP
UniFi HD AP
0
50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800
850
900
950
Mbps
600 Mbps
940 Mbps
10-Client Aggregate Throughput
238%
Improvement
130 Mbps
UniFi AC Pro AP
UniFi HD AP
440 Mbps
0
50 100 150 200 250 300 350 400 450 Mbps
100-Client Aggregate Throughput
900%
Improvement
UniFi AC Pro AP
UniFi HD AP
300 Mbps
0
50 100 150 200 250 300 350 400 450 Mbps
30*
* Mbps
High-Density Scenarios
For high-density environments, such as a concert venue
or outdoor fair where there are numerous clients in a
relatively small space, we recommend the UniFi HD AP.
Both Wave 1 and Wave 2 APs offer 28 independent
(non-overlapping) channels: three for the 2.4 GHz band
and twenty‑ve for the 5 GHz band, including DFS
channels.
When you use the 2.4 GHz band in a high-density
location, you encounter self-interference and channel
saturation. When you use the 5 GHz band, you can deploy
smaller cells (coverage areas), so you can support more
clients in any cell that deploys more than one AP.
With the advantages of MU-MIMO technology and 4x4
spatial streams, the UniFi HD AP can support more than
triple the number of users
2
than a typical Wave1 AP.
Recommended Maximum Number
ofUsers
70
UniFi AC Pro AP
UniFi HD AP
350
0
100 200 300 400 500 600 700 800 900 1000 Users
Theoretical Maximum Number of Users
125
UniFi AC Pro AP
UniFi HD AP
1000
0
100 200 300 400 500 600 700 800 900 1000 Users
For more information, go to:
ubnt.link/UniFi-UAPs-High-Density
² Actual numbers may vary depending on environmental and installation
conditions.