LINK LOCK HUB: PROTECTING MULTIPLE CONNECTED USB DEVICES SIMULTANEOUSLY

SmartKeeper Link Lock Hub – an unobtrusive but extremely effective tool that addresses one of the most underestimated security vulnerabilities – unauthorized disconnection of connected critical USB devices.

Link Lock Hub is a security USB hub that allows you to connect multiple devices while physically locking them against unauthorized disconnection or tampering. Unlike regular hubs, it’s not just about expanding ports – it’s about controlling what’s connected and who can tamper with it.

The Link Lock Hub works in combination with the Link Lock (in the Professional series) or USB Cable Lock (in the Essential series) and the special security key Professional Port Lock Key or Basic Port Lock Key, and it is not possible to disconnect the USB device without authorization.

Why is the physical security of USB ports critical?

It may sound like an exaggeration, but most security incidents are not caused by sophisticated hacks. They are often completely banal situations:

• an employee plugs in an unknown USB key
• a visitor charges their phone via a company computer
• someone disconnects critical equipment “just for a moment”

Even trusted people can unknowingly introduce risky devices to the network. Link Lock Hub eliminates these scenarios – physically.

How does it work in real life?

The use is simple but well thought out:

1. connect USB devices (mouses, keyboards, USB adapters, memory sticks, …) to the hub,
2. close the USB device connectors under a protective cover,
3. lock it with USB Port Lock (or USB Port Lock),
4. Unlocking is only possible with a special key (Professional Port Lock Key or Basic Port Lock Key)

The result? Stable and consistent connections – just what you need in a professional environment.

The hub can provide up to 4 USB devices at once, creating a centralized and controlled connection point.

Link Lock Hub can also serve as a secure storage for 4 USB memory sticks connected simultaneously. When connected to a computer/laptop, the locked Hub will display all 4 memory media as external drives connected to the computer, which can contain production programs, robot configurations or ISO images.

Main benefits that make sense

• Control over connected devices – no “random” USB devices on the network. Only what you allow.
• Tamper protection – devices cannot be disconnected without an authorized key.
• Physical layer of security – software is not enough – Link Lock Hub adds the missing physical barrier.
• Easy deployment – no training, no complex configuration – plug & secure approach.

Where does it make the most sense?

Link Lock Hub is not a “nice-to-have” accessory. In certain environments, it is practically a necessity:

• corporate IT infrastructure,
• data centers,
• banks and financial institutions,
• medical facilities,
• schools and public institutions.

Wherever sensitive data is handled or where multiple people have access to devices.

The SmartKeeper Link Lock Hub is exactly the kind of solution that solves a real problem without unnecessary complication. It’s not about replacing existing security systems. It’s about complementing them where they’re most vulnerable – at the physical level. If you want to have control over what’s going on in your USB ports, this is one of the simplest and most effective measures you can take.