Hybrid Cloud Device Management. Featuring Hybrid Cloud technology, the UniFi Cloud Key securely runs a local instance of the UniFi Controller software and features cloud Single Sign-On for remote access. UniFi Controller with Hybrid Cloud. Big things do come in small packages. We took one of our biggest ideas and engineered it to fit into a tiny form factor. Introducing the UniFi Cloud Key, a miniaturized marvel of technology. The UniFi Cloud Key is an integrated computer and software controller minus the bulk. It features a quad-core processor with 2 GB RAM, operating the latest version of the UniFi Controller with built-in hybrid cloud technology.