Short answer: a UniFi Cloud Key Plus is an excellent first console — it runs the UniFi applications and records up to 24 HD or 8 4K cameras on a single drive. You have outgrown it when any of four things becomes true: you need more cameras or longer retention than one drive bay allows, you want power or drive redundancy (a Cloud Key has neither), you are running several applications and want headroom, or you want the console to be your gateway rather than another box. The upgrade path is straightforward and does not mean rebuilding your network from scratch.
What a Cloud Key actually is
A Cloud Key is a small dedicated console: a compact appliance whose job is to run the UniFi applications so you do not have to leave a computer switched on or self-host a controller. The Cloud Key Plus adds a 2.5-inch drive bay so it can also record cameras — 24 HD, 14 2K or 8 4K — on a drive supplied pre-installed.
What it deliberately is not: a gateway. It does not route or firewall, so it sits alongside whatever gateway you already have. It has no PoE, no redundant power, no second drive bay, and no viewport — it is powered over PoE or USB-C and lives on a desk or, with an optional kit, in a rack.
Five signs you have outgrown it
- You are deleting footage sooner than you would like. One drive bay caps retention. If you keep shortening the retention window to fit, you have hit the wall the hardest way.
- You want more than eight 4K cameras. That is the ceiling, and camera counts grow.
- A failure would take everything down. No redundant power, no second drive. On a Cloud Key, one component failing takes the console, the recordings and the door-access controller with it.
- You are running several applications. Network plus Protect plus Access on one small appliance works, but headroom disappears as each grows.
- You have accumulated boxes. A gateway, a Cloud Key, maybe a separate recorder — where one rack console could do all of it with fewer points of failure.
Where to go next — three paths
1. A Dream Machine
Replaces the gateway and the Cloud Key. A UDM-SE records 8× 4K with PoE built in; a UDM-Pro-Max records 15× 4K across two bays. Fewest boxes, one console. See the Dream Machine comparison.
2. A dedicated recorder
Keep your gateway, move cameras to a UNVR, UNVR Pro or ENVR. Best where camera count or retention is the problem, and where you want recording independent of routing. See the NVR comparison.
3. A Cloud Key Enterprise
Stay with a dedicated management server but move to enterprise hardware — for MSPs and multi-site estates managing thousands of devices, rather than for camera capacity.
Choosing between them: if your problem is cameras, go to a recorder. If your problem is too many boxes, go to a Dream Machine. If your problem is scale of management across sites, go to a Cloud Key Enterprise.
Side-by-side
| Cloud Key Plus | UDM-Pro-Max | UNVR Pro | ENVR | |
|---|---|---|---|---|
| 4K cameras | 8 | 15 | 24 | 70 |
| Drive bays | 1 × 2.5" | 2 | 7 | 16 |
| Is it a gateway? | No | Yes | No | No |
| Power redundancy | — | USP-RPS input | USP-RPS input | Dual hot-swap PSUs |
| Drive redundancy | — | Possible with 2 bays | Yes | Yes |
| Form factor | Compact desktop | 1U rack | 2U rack | 3U rack |
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How the migration works
The good news is that you are not rebuilding the network. Adopted devices, settings and site configuration move with the applications rather than being re-entered.
- Set the new console up completely first — drives, storage protection, applications, firmware — while the Cloud Key keeps running. No downtime yet.
- Take a backup of the Cloud Key before touching anything. Always.
- Migrate the applications. UniFi supports moving an application install — an Access install on a Cloud Key, for instance — onto new hardware during setup, so door configuration and users carry across rather than being rebuilt.
- Move the cameras in batches. A camera belongs to one console at a time: release it on the Cloud Key, adopt it on the new console. Do a few at a time so the site is never broadly uncovered — the setup and migration guide covers this in detail.
- Leave the Cloud Key running until its recorded footage passes your retention window. Footage stays on the drive it was recorded to; it does not follow the camera.
- Repurpose or retire it afterwards — a Cloud Key makes a perfectly good console for a second small site.
When to keep the Cloud Key
Upgrading is not automatically the right answer. Stay where you are if:
- You are under eight 4K cameras and your retention target fits the drive.
- Your gateway is fine and you have no wish to replace it.
- A short outage while you replace a failed unit would be an inconvenience rather than a problem.
- You have no immediate plans to add cameras or doors.
And a middle path worth considering: keep the Cloud Key as the Network console and add a dedicated recorder for Protect. That solves camera capacity without touching the rest of the site — often the cheapest way to buy several more years.
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Frequently asked questions
A Cloud Key Plus records 24 HD, 14 2K or 8 4K cameras on a single 2.5-inch drive bay with a drive pre-installed. It is a compact desktop console that runs the UniFi applications but is not a gateway, so it sits alongside your existing router or gateway.
Five common signals: you are shortening retention to make footage fit one drive, you want more than eight 4K cameras, you need redundancy the Cloud Key does not have, you are running several UniFi applications and want headroom, or you have accumulated separate boxes that one rack console could replace.
It depends which problem you have. If the constraint is camera count or retention, move to a dedicated recorder such as a UNVR Pro or ENVR and keep your gateway. If the constraint is having too many separate boxes, a Dream Machine replaces both the gateway and the Cloud Key. If it is managing many devices across multiple sites, a Cloud Key Enterprise is the dedicated management server.
No. Adopted devices, settings and site configuration move with the application rather than being re-entered. Take a backup first, set the new console up fully before switching, and migrate the applications onto it - Access configuration and users carry across rather than being rebuilt.
No. Footage stays on the drive it was recorded to. Moving a camera to a new console means the new one starts recording it from adoption, so keep the old console running until its footage passes your retention window, and export anything tied to an incident before retiring it.
Yes. An existing Access install can be migrated onto new hardware during setup, which is worth doing deliberately if the new console has redundant power - it moves door control off a device with a single supply and no drive redundancy.
Yes, and often you should. A common middle path is keeping the Cloud Key as the Network console while adding a dedicated recorder for Protect - which solves camera capacity without touching the rest of the site. A retired Cloud Key also makes a perfectly good console for a second small site.
No. A Cloud Key Plus has a single drive bay and no redundant power supply, so any single component failure takes the console, its recordings and any door-access control with it. If that matters to your site, it is the strongest argument for moving to hardware with drive redundancy and, on enterprise recorders, dual hot-swappable power supplies.
No. A Cloud Key runs the UniFi applications but does not route or firewall, so it works alongside a separate gateway. A Dream Machine, by contrast, is both gateway and console in one unit, which is why it is a common upgrade path from a gateway-plus-Cloud-Key setup.
ARC IP Networks stocks the UniFi console and recorder range in Australia as an authorised Ubiquiti reseller, with genuine Australian stock, manufacturer warranty, GST tax invoices and fast Australia-wide shipping. Browse consoles and gateways or call 1300 100 440.
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About ARC IP Networks
ARC IP Networks is an Australian supplier of networking, Wi-Fi and gateway equipment, based in Blackburn, Melbourne, Victoria. We work with homeowners, installers, integrators and businesses across Australia, supplying Ubiquiti UniFi, MikroTik, TP-Link, Ruijie, Teltonika and D-Link.
We are an authorised Ubiquiti, MikroTik, TP-Link, Ruijie, Teltonika and D-Link reseller, so you get genuine Australian stock with the full manufacturer's warranty, never grey imports, at competitive prices. Our team can help you choose the right equipment, and trade customers get trade accounts and project pricing on larger jobs.
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