Overview

The UniFi Cloud Key Gen2 Plus (UCK-G2-PLUS) is an all-in-one device from Ubiquiti Networks that combines a UniFi network controller with a Network Video Recorder (NVR). It allows you to manage UniFi access points and switches while simultaneously recording video from UniFi Protect cameras. The unit comes with a built-in 1TB 2.5-inch SATA HDD, upgradable to 5TB, and features a front-panel display showing system statistics. Setup is done via Bluetooth using the UniFi mobile app for iOS and Android. An internal battery provides backup power during short outages, ensuring safe shutdown and data protection.

Compatibility Guide

This device is designed exclusively for the UniFi ecosystem. It works with UniFi access points, switches, and gateways, as well as UniFi Protect cameras. Initial configuration requires the UniFi mobile app and Bluetooth connectivity. The unit connects to your network via a Gigabit Ethernet port. The internal HDD is a standard 2.5-inch SATA drive, user-replaceable and upgradable up to 5TB. Operating temperature range is 0–35°C. It is not compatible with third-party networking or camera equipment.

Product Info

Released in 2018, the UniFi Cloud Key Gen2 Plus occupies the mid-range segment of Ubiquiti's controller lineup. It is positioned as an integrated solution for small to medium UniFi deployments, eliminating the need for separate controller and NVR hardware. Pricing on is approximately ¥53,608 as of August 2026. The standard warranty is one year (varies by region). Included in the box: the Cloud Key Gen2 Plus unit, power adapter, Ethernet cable, and quick-start guide. It is available through , the Ubiquiti store, and authorized resellers.

Best Use Cases

Small offices or retail stores using UniFi networking: If you already have UniFi access points and switches, adding this device lets you manage everything and record security footage from UniFi Protect cameras in one compact unit. It simplifies cabling and reduces hardware costs. However, for larger deployments with many cameras or high traffic, a dedicated UniFi Dream Machine or separate NVR may perform better. Home users building a UniFi ecosystem: Enthusiasts with a few UniFi access points who want to add video surveillance will appreciate the space-saving all-in-one design. The Bluetooth setup makes initial configuration painless. Be aware that the device runs 24/7, so consider ventilation and power consumption. * Remote site monitoring: The built-in battery provides graceful shutdown during power outages, and the device automatically restarts when power returns. This makes it suitable for unattended locations where reliable operation is critical. Note that the battery is not designed for extended runtime—only for safe shutdown.

Things to Consider

The Cloud Key Gen2 Plus is locked into the UniFi ecosystem—it cannot manage non-UniFi devices. The stock 1TB HDD may fill quickly if you use multiple high-resolution cameras; upgrading to a larger drive is straightforward but requires purchasing a compatible 2.5-inch SATA HDD. Running both controller and NVR functions simultaneously can strain the CPU under heavy load, especially with high-bitrate camera streams. Regular firmware updates are essential for security and performance. Also, the device lacks a built-in router, so you will need a separate gateway or router for internet connectivity. ## FAQ
Q: How is this different from the UniFi Dream Machine? A: The Dream Machine includes a router/gateway, while the Cloud Key Gen2 Plus focuses solely on controller and NVR functions. If you already have a router, the Cloud Key is a more cost-effective choice. Q: Can I upgrade the internal storage? A: Yes. The bottom cover can be removed to access the 2.5-inch SATA HDD. It supports drives up to 5TB. After replacement, you need to reformat the storage in the UniFi Protect settings. Q: How many cameras can it support? A: Officially up to 20 UniFi Protect cameras. Actual recording duration depends on HDD capacity and video quality settings. With the stock 1TB drive, continuous recording of 1080p cameras typically stores about two weeks of footage.

Product Disclosure (Amazon)

  • Manufacturer: Ubiquiti Networks
  • Seller: 【輸入雑貨】ドラゴンビレッジ
  • Fulfilled by: 【輸入雑貨】ドラゴンビレッジ
  • ASIN: B07HLLC1TC
  • Note: This article covers a manufacturer-made product based on Amazon listing details.