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 AC 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* 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*
than a Wave 1 AP that is 3x3 in both radio bands.
Real-World Performance The UniFi AC 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 AC HD AP delivers up to 125%
greater performance* 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 AC HD AP.
* Actual performance values may vary depending on environmental and
installation conditions.
5-Client Aggregate Throughput
Dual-Band
4x4 SU-MIMO
260 Mbps
0
50 100 150 200 250 300 350 400 450 Mbps
Dual-Band
3x3 SU-MIMO
Dual-Band
4x4 MU-MIMO
200 Mbps
450 Mbps
Single-Client Aggregate Throughput
56%
Improvement
UniFi AC Pro AP
UniFi AC 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
184%
Improvement
130 Mbps
UniFi AC Pro AP
UniFi AC HD AP
370 Mbps
0
50 100 150 200 250 300 350 400 450 Mbps
60-Client Aggregate Throughput
241%
Improvement
60 Mbps
UniFi AC Pro AP
UniFi AC HD AP
205 Mbps
0
50 100 150 200 250 300 350 400 450 Mbps