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menuUCK-G2 Quick Start Guide

Package Contents

UniFi Cloud Key Gen2

System Requirements

Hardware Overview

LCD Screen

UniFi OS Console name

Current WAN bandwidth usage

Status of Network Cloud Access

Number of managed UniFi Access Points

Number of client devices on the network

Reset Button

The Reset Button serves two functions:

  • Restart Press and release the Reset button quickly.
  • Restore to Factory Default Settings Press and hold the Reset button for more than five seconds, until the status LED begins flashing white.

Power Button

Press to turn the Cloud Key Gen 2 on or off.

USB Type C Power Port

Used for power if PoE is not available. Quick Charge 2.0 or Quick Charge 3.0-compliant USB power adapter is required.

microSD Slot

Optional slot used for external backup (microSD card not included).

Ethernet Port

Connects to a gigabit switch port on your LAN. Power can be provided by an 802.3af PoE switch, such as the UniFi PoE Switch.



Device is ready to be configured

Flashing White

Device is booting up

Device is initializing/deinitializing

Heartbeat White

Firmware update in process


Device is configured and ready

Flashing Blue

Main power has been lost and device is counting down.

If power is restored within 10 seconds, the device will return to its previous state. If power is not restored within 10 seconds, the device will safely shutdown.

Slow Flashing Blue

Client connected to device via Bluetooth (BLE)

Flashing White/Blue

Device is in recovery mode.

The LED will cycle through a pattern at one-second intervals, between off, white, and blue.

Rack-Mount Notch

Secures the Cloud Key Gen2 into the docking bay of the optional Rackmount Accessory, model CKG2-RM (sold separately). The Rackmount Accessory allows you to install the Cloud Key Gen2 in a standard 19" rack.

13-Pin Connector

Connects the Cloud Key Gen2 to the optional Rackmount Accessory, model CKG2-RM (sold separately). The CKG2-RM has a docking bay for the Cloud Key Gen2 and allows you to install it in a standard 19" rack.

Hardware Installation

Powering the UniFi Cloud Key

Use an 802.3af-compliant switch, such as a UniFi PoE Switch, or a USB power source (not included).

UniFi Switch

Optional Rackmount Accessory

  1. Insert the Cloud Key Gen2 into the docking bay once the following three conditions are met:
    1. The 13-pin connector is face up
    2. The LCD screen is face forward
    3. There is no Ethernet cable connected to the Ethernet Port on the Cloud Key Gen2

Warning: To prevent creating a loop or other unfavorable behavior on the network, only one Ethernet connection should be used. Do not use the Ethernet port on the Cloud Key Gen2 and the Rackmount Accessory simultaneously.




27.10 x 46.80 x 119.75 mm
(1.07 x 1.84 x 4.71")


172 g (6.07 oz)



Management Interface

UniFi Network Application; UniFi OS Console

Networking Interface(s)

(1) 10/100/1000 Ethernet Port


(1) Power; (1) Reset to Defaults

Power Supply

802.3af PoE or USB-C 5VDC, Minimum 1A

Max. Power Consumption


Operating Temperature

0 to 35° C
(32 to 104° F)

Operating Humidity

20 to 80% Noncondensing