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best laptop lock

The Best Laptop Locks in 2021

Author: Robert Wilson

Electronics & Peripherals Expert

Are you looking for additional protection for your laptop? Then a laptop lock is the right decision for you. It protects your laptop from unauthorized access. This security also has a deterrent effect on thieves. But the laptop lock is not only suitable for laptops, it can also be used for other devices.

With our laptop lock test we want to help you find the safest and most suitable laptop lock for you. You can find a comparison between numeric code laptop locks and keys. You can weigh up which variant you should ultimately choose based on our advantages and disadvantages. There are a few criteria you should consider when buying a laptop lock. But we want to find out these here and make your purchase decision easier.

  • A laptop lock allows you to finally leave your laptop unattended with a clear conscience. Your laptop lock will take care of the protection of your notebook from now on.
  • Basically, you have the choice between a laptop lock with a combination lock or keys, whereby a laptop lock with a key is definitely more suitable for forgetful people.
  • A security lock for your laptop offers additional protection against theft. Nobody can tamper with your sensitive and private documents.

Best Laptop Locks

Manhattan Mobile Device Lock

 Our Pick
Manhattan Laptop Device Lock
  • [Excellent Theft Deterrent] Helps keep your electronic…
  • [Easy Setup] Designed for use with laptops in mind, the plug…
  • [Robust Lock] K-Slot lock is made of durable metal to stay…
  • [Strong Steel Cable] Cable’s 6 ft. steel cable provides a…
  • [Radial Lock Security and Two Keys] Radial-lock design makes…

The Manhattan Notebook Security Lock has a solid steel cable that is 1.8 m long. The cable has an ideal thickness of 5.0 mm. The PVC cable jacket protects your device and your furniture from unsightly scratches.

If you want a key lock to secure your laptop and don’t want to memorize a numeric code, then we recommend the Manhattan Notebook Security Lock. In addition, this security lock is suitable for all devices with a K-slot.

Kensington Combination Cable Lock for Laptops

Kensington Combination Cable Lock for Laptops
  • Computer lock for HP, Lenovo, Acer, Asus and other brands;…
  • Resettable 4-wheel Number code with 10, 000 possible…
  • 6’ long carbon steel cable is cut-resistant and anchors to…
  • Attaches to laptops, desktops, TVs, monitors, hard drives,…
  • Independently verified and tested for industry-leading…

The Kensington K64675EU ultra-laptop combination lock offers the highest cut resistance with an extra strong ultra cable. The cable length is also 1.8 m here. It is a very durable cable with a thickness of 5.5 mm. This laptop lock consists of a 4-digit combination lock.

If you like to memorize codes and need a sturdy laptop lock, then you will be very well served with the Kensington K64675EU ultra-laptop combination lock. This notebook lock is also compatible with laptops that have a K-slot.

Kensington Microsaver Slim Security Cable

Kensington Microsaver Slim Security Cable
  • Patented T-bar lock provides secure locking into security…
  • Superior lock and cable provides the industry standard for…
  • One piece design for ease of use
  • No messy glue or screws or brackets — does not impact…
  • A convenient Velcro strap keeps MicroSaver compact for…

The Kensington 64020 MicroSaver laptop lock with carbon steel cable is very robust and cut-resistant. The cable is 1.8 m long and 5.3 mm thick. It has a hidden pin technology and is therefore tamper-proof. The compatibility is guaranteed by the K-Slot.

If you are looking for a laptop lock with a carbon steel cable and you don’t like memorizing any codes, then this lock is for you. There are two keys available to you.

Folai Laptop Lock

Folai Laptop Lock
  • Universal Security Cable. Made of extremely strong and…
  • The cable comes with 2 lock keys as an alternative spare….
  • For both commercial and private security including the…
  • Industrial grade 3M adhesive provides strong adhesive power…

Frequently Asked Questions: Laptop Lock

What is a laptop lock?

Not only can you connect a bike to a bike rack with a lock, you can also secure a laptop with a laptop lock. A laptop lock is a safeguard for the laptop so that it cannot be removed without authorization.

A laptop lock consists of a sturdy and long cable that has a lock at the end, e.g. a combination lock.

A laptop lock is a practical and affordable solution for securing your laptop with sensitive data.

This security lock is just an additional protection for your laptop and is mainly used to deter thieves.

How does a laptop lock work?

A laptop lock works similarly to locking a bicycle. The laptop usually has a small opening to which the special lock can be attached.

The lock is encrypted with the numeric code or a key. The cable is then attached to an object e.g. attached to a table or column. This way nobody can steal your laptop.

Who should use a laptop lock?

A laptop lock is suitable for anyone who wants to protect their laptop or notebook from unauthorized access or theft. You can use a notebook lock at home, on business trips, but also anywhere on the go.

If you are currently in a café or on a train and absolutely have to go to the toilet, but don’t feel like taking your laptop with you to the quiet place, then the laptop lock comes into play. So you can leave your notebook unattended for a short time and don’t have to worry about it.

What alternative is there to a laptop lock?

The only alternative to a security lock for laptops is to take out insurance against theft and install the appropriate software that protects private data.

In addition, setting up a tracking app on the notebook would certainly make sense, as the laptop can be found via GPS after installing this app.

Types of Laptop Locks

If you want to get a laptop lock, there are two alternatives you can choose between:

  • Laptop lock with combination lock
  • Laptop lock with key

The laptop lock with combination lock is very common. The combination lock usually has a code where you have to choose 4 numbers.

With a laptop lock with a key, you usually get two keys so that you have one on reserve.

against theft and install the appropriate software that protects private data.

In addition, setting up a tracking app on the notebook would certainly make sense, as the laptop can be found via GPS after installing this app.

Laptop lock with combination lock: Advantages & Disadvantages

If you would like to memorize any number codes, then we advise you to use a combination lock. Usually there is a 4-digit code, because you then have to memorize yourself in order to be able to open your lock again later.

With a 4-digit code, there are 10,000 possible combinations.

Since you have a combination lock, you don’t have to carry any additional keys with you, which can easily be lost or stolen.


  • Easy installation
  • No special keys required
  • No loss of a key
  • No other key on the bunch of keys


  • Embossing of the numerical code
  • Code can be decrypted

Laptop lock with key: Advantages & Disadvantages

If you are a person who does not like to remember numerical codes or is very forgetful, then a lock with keys is certainly a practical solution.

Because you can simply attach your key to your existing key ring. Usually there is still a spare key which you can keep at home or with your family in case of emergencies.


  • Easy installation
  • Keys only
  • Don’t memorize a numeric code
  • Spare key available


  • Special keys required
  • Loss or key theft possible

Laptop Lock: Purchase Criteria

In the following we will show you which aspects you can use to decide between the multitude of possible laptop locks.

The criteria that you can use to compare laptop locks with one another include:

  • Cable material
  • Cable length
  • Cable thickness
  • Closure type
  • Compatibility

In the following paragraphs we will explain to you what is important for the individual criteria.

Cable Material

A very important point is the material of the cable. To adequately protect your laptop, it is beneficial to use a high quality cable.

Your laptop will not be adequately secured with a simple plastic cable because it can easily be cut through. On the other hand, a thicker and more stable cable made of steel is not so easy to damage.

Carbon steel is more cut resistant than carbon steel

There are cables that offer effective protection through cut-resistant carbon steel with a separate protective coating. Generally speaking, steel is always a good choice, because steel is very robust. The cable is usually sheathed with vinyl or PVC. The smooth coating ensures that your laptop or other devices cannot be damaged or scratched.

Cable Length

Cable length is also an important factor when it comes to buying a notebook lock. A laptop cannot be attached everywhere with a short cable, because a shorter cable reduces the attachment range. A longer cable offers more choice for attachment. Most cables are up to three meters in length.

Cables that can be retracted or extended are of course very practical, because you don’t have a tangled cable at the end. This is certainly a positive factor.

Cable Thickness

The cable thickness or the cable diameter must not be ignored.

A thicker cable is more durable.

Because the thicker the cable, the better and, above all, the safer the protection. If you buy a thicker cable, it will be more difficult to cut the cable.

We recommend a cable diameter of at least 5.0 mm. The cables are available in various diameters. So you have the choice between a cable thickness of under or over 5.0 mm.


The term lock type means whether the laptop lock can be opened with a numeric code or with a key.

As we have already learned above, there are of course some advantages and disadvantages that laptop locks with numeric codes or keys have.

Lock Type

A laptop lock is not only compatible with the various notebooks, but can also be used to secure other devices. The following electronic devices can be secured with some laptop locks:

  • Tablet
  • iPad
  • Monitors
  • Projectors
  • Printer

Since of course not every lock can be used for all laptop models, you have to pay attention to what kind of security slot is on the lock.

The most common locking mechanism is the T-bar locking head.

There’s the Kensington security lock, which has a K on the lock. It is suitable for laptops with an opening of approx. 3.0 x 7.0 mm. For this reason, you need to know what type of opening your notebook has before buying.

Facts about Laptop Locks

How do I attach a laptop lock?

If you have bought your laptop lock, the question now arises how it is fastened. You will find a small opening on your laptop. When you have found the opening, here are brief instructions:

  1. You take the cable & wrap it around a table
  2. Then the lock is pulled through the anchoring opening
  3. The lock is attached to the laptop opening
  4. Turn it 90 ° to the left to anchor the lock
  5. The key is pulled out and stored securely
  6. Your laptop is thus secured

When you buy a lock, instructions are of course included.

How secure is a laptop lock?

Of course, a laptop lock does not offer 100% protection, but it should serve as additional protection. Furthermore, it should deter thieves, if someone tampered with the cable, the laptop is usually no longer usable & the thief does not benefit. So stealing a laptop with a lock is less interesting than one without a lock.

For more security, you should take out insurance against theft and encrypt your confidential data with a password.

Of course, a more secure lock has a certain quality. In addition, security does not only depend on the respective laptop lock, but also on the quality of your laptop. If your device has a plastic opening and is not of good quality and robust, it can make it less secure.

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Last product update on 2022-06-30 | Source: Amazon Affiliate