Ubiquiti ACB-AC airCube Home WiFi AP Dual-Band 802.11ac Access Point
Overview
The Ubiquiti ACB-AC is the airCube Home WiFi AP, a compact dual-band wireless access point designed to interoperate with airMAX CPE devices and support remote management through UISP. It combines 2.4 GHz and 5 GHz 802.11ac WiFi with four Gigabit Ethernet RJ45 ports in a compact enclosure. Ubiquiti specifies maximum wireless speeds of 300 Mbps on 2.4 GHz and 866.7 Mbps on 5 GHz.
Wireless Connectivity
The ACB-AC uses dual-band 2.4 GHz and 5 GHz WiFi with 2x2 MIMO technology. The integrated antennas provide 4 dBi gain on 2.4 GHz and 5 dBi gain on 5 GHz, while maximum transmit power is specified at 22 dBm. The unit provides Gigabit Ethernet connectivity for wired network devices and Ethernet-based management.
Ethernet and PoE
The airCube provides four Gigabit Ethernet RJ45 ports. Ethernet port 1 supports 24V DC, 0.83A passive PoE input, while the WAN port provides controllable 24V passive PoE output using pins 4, 5 positive and 7, 8 negative. Ubiquiti also specifies a Micro-USB power adapter as an included power method.
Deployment and Management
The ACB-AC is intended for home and CPE-oriented deployments where wireless access, Gigabit Ethernet connectivity, and power passthrough for a compatible 24V airMAX device are required. Ubiquiti identifies the product as an airCube Home WiFi AP and states that it is made to interoperate with airMAX CPE devices, with remote management through UISP.
Key Features
- Dual-band 2.4 GHz and 5 GHz 802.11ac WiFi
- Four Gigabit Ethernet RJ45 ports
- Up to 866.7 Mbps maximum speed on the 5 GHz radio
- Controllable 24V passive PoE output for a compatible device
- 22 dBm maximum transmit power with 4 dBi and 5 dBi antenna gain
Applications
The ACB-AC can be deployed as a compact WiFi access point for residential and CPE environments, particularly where an airMAX device may also require 24V passive PoE power. Its four Gigabit Ethernet interfaces allow wired devices to connect alongside the wireless network.
DC Supplies Product Note
The PoE output is a controllable 24V passive PoE output rather than a standard negotiated PoE service. Confirm that the connected airMAX or other device explicitly supports the specified 24V passive PoE input before using the WAN port for power delivery.
Specifications
| Specification | Details |
|---|
| Brand | Ubiquiti |
| Part Number / MPN | ACB-AC |
| Product Type | Dual-Band WiFi Access Point |
| Product Name | airCube Home WiFi AP |
| Wireless Standard | 802.11ac |
| WiFi Bands | 2.4 GHz / 5 GHz |
| Maximum 2.4 GHz Speed | 300 Mbps |
| Maximum 5 GHz Speed | 866.7 Mbps |
| Antenna Gain | 4 dBi at 2.4 GHz; 5 dBi at 5 GHz |
| Maximum TX Power | 22 dBm |
| Networking Interface | 4 × Gigabit Ethernet RJ45 |
| Management Interface | Ethernet |
| Power Method | Micro-USB adapter included; 24V passive PoE input |
| Power Supply | 24V DC |
| Supported Voltage Range | 22–27V DC |
| Maximum Power Consumption | 8.5W |
| PoE Input | 24V DC, 0.83A on Ethernet port 1 |
| PoE Output | Controllable 24V passive PoE on WAN port |
| PoE Output Pins | 4, 5 positive; 7, 8 negative |
| ESD/EMP Protection | ±24 kV contact / air |
| Operating Temperature | -10 to 50°C (14 to 122°F) |
| Operating Humidity | 5 to 95% noncondensing |
| Dimensions | 87.8 × 89.5 × 89.25 mm (3.5 × 3.5 × 3.5") |
| Weight | 280 g (9.9 oz) |
| Certifications | CE, FCC, IC |
| NDAA Compliant | Yes |
Frequently Asked Questions
What WiFi standard does the ACB-AC support?
The ACB-AC supports dual-band 802.11ac WiFi on the 2.4 GHz and 5 GHz bands.
How many Ethernet ports does the ACB-AC have?
It provides four Gigabit Ethernet RJ45 ports.
Does the ACB-AC provide PoE output?
Yes. The WAN port provides controllable 24V passive PoE output using pins 4 and 5 positive and pins 7 and 8 negative.
What are the maximum wireless speeds?
Ubiquiti specifies up to 300 Mbps on 2.4 GHz and 866.7 Mbps on 5 GHz.
What power methods are supported?
The ACB-AC supports a Micro-USB adapter and 24V passive PoE input on Ethernet port 1. Ubiquiti specifies a Micro-USB adapter as included.
What devices is the ACB-AC designed to interoperate with?
Ubiquiti identifies the ACB-AC as a home WiFi access point made to interoperate with airMAX CPE devices.
