UniFi Cloud Key Gen2

The UniFi Cloud Key Gen2 Plus is an integrated hardware controller and self-contained application server designed to monitor and manage your UniFi network devices and camera surveillance system. It features an eight‑core processor with 3 GB RAM, a 1 TB SATA HDD for video storage, and 32 GB eMMC flash storage, and utilizes the latest version of the UniFi Controller with hybrid cloud technology.

The UniFi Cloud Key Gen2 Plus (UCK G2 Plus) stores its internal configurations, databases, and managed device profiles directly on its internal hard drive (HDD/SSD). Managed UniFi devices use a push-and-pull system for configuration:

The Master Copy: The complete, working configuration for every adopted switch, access point, and gateway is stored inside the MongoDB database running on the UCK G2 Plus hard drive.

The Device Copy: When you change a setting in the UniFi network application, the Cloud Key provisions the device. It pushes a compressed configuration file (historically called system.cfg) directly into the local flash memory of that specific hardware device.