Computer security cables provide a crucial layer of physical deterrence against theft for laptops, desktops, and various electronic peripherals, particularly in public, shared, or open office environments. These devices typically secure equipment to a fixed object, preventing opportunistic snatch-and-grab incidents. Products were evaluated based on lock mechanism, cable material, compatibility with different device slots, user reviews, and feature analysis.
Kensington N17 Dell Laptop Computer Lock, Combination Security Locking Cable (K68008WW) Black
$14.99
This Kensington lock offers a recognized standard for security and is widely compatible with Dell laptops and other standard T-bar slots.
Search on AmazonAOMGD 2 Pcs 6-Foot Laptop Lock Notebook Combination Lock Security Cable 4 Digit Password Protections and Theft Deterrent Suitable for 3 * 7mm Keyholes
$9.99
The AOMGD 2 Pcs set provides two combination locks, offering good value for securing multiple devices or having a spare.
Search on AmazonKensington Desktop & Peripherals Locking Kit 2.0, Black (K64424WW)
$26.56
The Kensington Desktop & Peripherals Locking Kit 2.0 provides a comprehensive solution for securing not just a desktop but also multiple accessories.
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- KEYLESS CIPHER LOCK: The resettable 4-number combination lock offers 10,000 possible codes. An individual can select their own code--easy to remember and no lost keys
- 6 FOOT COMPUTER LOCK: Galvanized wire rope and hardened stainless steel, so this laptop security lock cable is anti-cut and high security. Suitable for 3*7mm keyholes
- COMPATIBILITY NOTICE: The following models cannot be used: Lenovo U41 / U31 / M41 / S41 / K41 / Ideapad series / Flex3 series; Acer Aspire V Nitro/Chromebook R13; Dell XPS13/SPX13 / 7000 / M3800 / Alienware / Insprion 7000/Inspiron 7779 with square...
- CHANGE PASSWORD INSTRUCTIONS: The preset combination is 0-0-0-0. To set your own combination, use a small flat-head screwdriver or similar object to push in screw (Bottom of password lock) and rotate clockwise to vertical position. Set your new...
- Computer lock for HP, Lenovo, Acer, Asus and other brands; not compatible with Dell or Alienware (see part # K68008WW)
- Resettable 4-wheel Number code with 10, 000 possible combinations. Push-button design for one-handed engagement to easily attach lock
- 6’ long carbon steel cable is cut-resistant and anchors to desks, tables, or any fixed structure
- Attaches to laptops, desktops, TVs, monitors, hard drives, docking stations, projectors or any other device featuring a Kensington standard size security slot
- 🎁FIT FOR ALL THE TABLETS: 🎁With an anchor plate, The Hardware cable lock fits for Mac Book and all the Tablets, Smart Phones, such as for iPad, Microsoft Surface, Kindle, Samsung, Android Tablets and phones, etc
- 🎁FIT FOR MOST THE LAPTOPS: 🎁With standard lock, the security cable lock also fits for most laptops that have Standard slots.
- 🎁HOW TO USE: 🎁For Tablets/Laptops without standard lock slot: Bound the anchor plate, which is lined with strong adhesive, to the hard surface of the devices, then insert the locking head into the plate with keys and loop the cable around a fixed...
- 🎁ANTI THEFT: 🎁The lock head is made of super-strong stainless steel, can be rotated in 360 degrees. The cable is made of cut-resistant twisted steel with a PVC coat, the extra length of 6.5ft fully meets your daily demands
- 【For Devices Without Security Lock holes】There is a lock slot plate lined industrial grade double sided adhesive, bound the plate to the hard surface of the devices, then insert the locking head into the plate and loop the cable around a fixed object.
- 【For Laptops With Built-in Security Lock holes】Just simply insert the lock head into the slot, and loop the cable around a fixed object.
- 【UPGRADED 100% ANTI THEFT】The lock head is made of super strong stainless steel and double lever lock, thicker and firmer. One key lever push button with 360°rotating, design for one hand operation. 5mm diameter cut-resistant wire braided cable is...
- 【Code Combination】The computer locks utilizes a 4 digit security code. This customizable combination allows you to have over 10,000 different and unique combination. no lost keys!
- Laptop Lock for Dell laptops fits seamlessly into Dell and Alienware laptops with the wedge type lock slot
- Resettable 4-wheel Number code with 10, 000 possible combinations. Push-button design for one-handed engagement to easily attach lock
- Unique lock engagement creates the strongest connection between the lock head and slot; 6' long carbon steel cable is cut-resistant and anchors to desk, table or any fixed structure
- Independently verified and tested for industry-leading standards in torque/pull, foreign implements, lock lifecycle, corrosion, key strength and other environmental condition
- The strong lock head is designed for desktop PCs and other devices
- 5mm Keying System featuring patented anti-pick Hidden Pin Technology
- 2 adapters and cable trap secure peripheral accessories
- Anchor plate allows devices without a Kensington Security Slot to be locked securely
- 5-Foot (1.5m) Carbon Steel Cable - Resists cutting attempts and provides ample length for easily anchoring your laptop to desks, tables, and other attachment points. Incorporates anti-shearing plastic sleeve to protect surfaces
- Slim Lock Head - Designed to support thin laptops using standard lock slots, lock secures while allowing your device to lie flat and stable
- Resettable 4-Wheel Number Code - Set or reset your personal number code from 10,000 possible combinations
- Pivoting Head and Rotating Anchor - The lock tip rotates 360º and the cable rotates up to 90º—allowing access to the ports near the lock slot on most devices and providing a convenient locking and unlocking experience
- One lock for any slot — fits standard, nano, or wedge-shaped laptop security slots, regardless of brand or generation, helping to “future-proof” your locking solution. Lock tips are easily changed; a tether keeps unused lock tips handy
- Resettable 4-number dial offers 10,000 possible combinations and the ability to easily change the code
- 1.8m (6 ft.) carbon steel cable with plastic sheath delivers cut and theft resistance
- Register & Retrieve, Kensington’s online registration program, allows for quick, secure, and free combination retrieval
- SAFETY SLOT: A security slot for most laptops, securely fastened to the inner wall of the device for a high level of safety. Please check for suitability before purchase.
- SELF-ADHESIVE ANCHOR PLATES: These cables are also suitable for devices without security slots, such as LCD monitors, projectors, LED TVs, etc. The anchor plates are fixed to the device with an adhesive.
- PROVIDES MUCH-NEEDED SECURITY: Find an immovable object in your environment and wrap the cable around the fixed object to prevent theft of electronics in public places.
- CARBON STEEL CABLE: The 5mm thick carbon steel cable is cut resistant and made from multiple wires twisted together for strength and reliability.
- Complete Security Set: Super value with 2 sets of adhesive sticker & anchor plate for use on multiple mobile devices, provides much needed security against theft of your various gadgets in public places, a true laptop notebook ipad lock that gives you a...
- Strong Adhesive Power: Industrial grade 3M adhesive provides strong adhesive power to most flat surfaces with intense power that effectively prevents tablets or cell phones being pulled away, it's also powerful enough to be inserted in to large notebook...
- Premium Steel Design: Cut-resistant galvanized steel cable (6 feet) allows easy iPad or iPhone movement while secured. The high-quality stainless steel lock resists damage and ensures smooth operation, making it an ideal iPad locking stand when paired...
- Easy Key Operation: The minimalist design ensures easy installation in seconds while being highly effective. It seamlessly integrates with your sleek Apple or Android mobile devices as a MacBook locking cable, iPad Air lock, or Samsung Galaxy Tab cable...
This article is part of our complete guide Laptops & Desktops — browse all our comparisons and buying guides.
Last update on 2026-10-16 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Computer Security Cables
Lock Mechanism and Security Features
When selecting a computer security cable, the type of lock mechanism is a primary consideration. Users can generally choose between keyed locks and combination locks. Keyed locks, like the Kensington N17 Dell Laptop Computer Lock, offer the convenience of a physical key, which can be beneficial in environments where a single person is responsible for multiple devices. Conversely, combination locks, such as those found in the AOMGD 2 Pcs 6-Foot Laptop Lock, eliminate the need for keys, relying instead on a resettable 4-digit code. This is often preferred in shared spaces where multiple individuals might need access. In practice, the resettable nature of combination locks provides flexibility, though users report that ensuring the combination is memorable yet secure is key. Some advanced options, like the Kensington Desktop & Peripherals Locking Kit 2.0, feature patented anti-pick Hidden Pin Technology, enhancing resistance against tampering, a critical factor for high-value assets. For managing multiple locks, the "Keyed Alike" option offered by LORADAR can streamline security management, allowing a single key to open several locks.
Compatibility and Device Versatility
Device compatibility is paramount, as not all security cables fit all devices. Most laptops feature a standard security slot, often a T-bar or Noble Wedge slot. Products like the Kensington N17 and AOMGD locks are designed for the common 3x7mm keyholes. However, many modern or ultra-thin devices, including MacBooks, tablets, and some specific laptop models like the Lenovo U41/U31/M41/S41/K41/Ideapad series (as explicitly noted by AOMGD), lack these standard slots. For such devices, a universal solution is required. The I3C Laptop Cable Lock addresses this with an anchor plate that adheres to the device, providing a secure point where the cable can attach. Similarly, LORADAR offers mounting adhesive plates. For securing not just the primary device but also peripherals like monitors, docking stations, or external hard drives, comprehensive kits such as the Kensington Desktop & Peripherals Locking Kit 2.0 include additional adapters and cable traps, which are invaluable for a complete workstation security setup.
Cable Construction and Durability
The physical construction of the cable directly impacts its resistance to cutting and tampering. In practice, a robust cable material is essential for effective theft deterrence. Many cables, including the AOMGD laptop lock, utilize galvanized wire rope and hardened stainless steel, which are designed to be anti-cut and difficult to sever with common tools. Similarly, the LORADAR cable lock specifies its construction from "strong twisted steel," emphasizing its superiority over simpler iron wire. The length of the cable is also a practical consideration; a typical 6-foot (or 6.23-foot) cable provides sufficient reach for most setups, allowing the device to be secured to a sturdy desk leg or other immovable object without restricting usability. However, for larger workspaces or specific anchoring points, users might find longer cables more accommodating. The quality of the lock head, as highlighted by Kensington's "strong lock head" design, is equally important, as it's the critical point where the cable connects to the device and endures direct stress.
Pros & Cons
Kensington N17 Dell Laptop Computer Lock, Combination Security Locking Cable (K68008WW) Black
Pros
- Specifically designed for Dell laptops, ensuring optimal fit and security for compatible models.
- Utilizes a traditional keyed mechanism, preferred by users who manage physical keys.
- Kensington is a well-established brand in physical security, suggesting reliability and broad compatibility with standard T-bar slots.
Cons
- Keyed lock means keys can be lost, requiring replacement or professional intervention.
- May not be compatible with non-standard security slots or ultra-thin devices without adapters.
AOMGD 2 Pcs 6-Foot Laptop Lock Notebook Combination Lock Security Cable 4 Digit Password Protections and Theft Deterrent Suitable for 3 * 7mm Keyholes
Pros
- Includes two locks, offering value for securing multiple devices or as a backup.
- Features a resettable 4-digit combination lock, eliminating the need for keys.
- Constructed with galvanized wire rope and hardened stainless steel for enhanced cut resistance.
Cons
- Specific Lenovo models (U41, U31, M41, S41, K41, Ideapad series) are explicitly listed as incompatible.
- Combination codes can be forgotten, requiring a reset process or potentially rendering the lock unusable if the reset procedure is unclear.
I3C Laptop Cable Lock, Hardware Security Cable Lock with Keys, Anti Theft Combination Lock for Laptop Monitor Compatible with Tablet Surface Projector and Other Electronic Devices
Pros
- Offers universal compatibility for devices without standard lock slots via an adhesive anchor plate, including MacBooks and tablets.
- Includes both an anchor plate and a standard lock, making it versatile for various device types.
- The strong adhesive for the anchor plate provides a secure, permanent attachment point for non-slotted devices.
Cons
- The adhesive anchor plate is a permanent solution; removal might leave residue or damage the device's surface.
- Relies on the strength of the adhesive for non-standard devices, which some users might perceive as less secure than a built-in slot.
Common Mistakes to Avoid
Overlooking Specific Device Compatibility
A frequent error users make is assuming all laptop security cables are universally compatible. In practice, while many locks fit the common 3x7mm keyholes, certain devices have proprietary or no physical security slots. For instance, the AOMGD lock explicitly lists specific Lenovo models (U41, U31, M41, S41, K41, Ideapad series) as incompatible. Similarly, devices like MacBooks or certain tablets lack a standard slot, necessitating a product like the I3C Laptop Cable Lock, which uses an adhesive anchor plate. Failing to verify device compatibility against product specifications can lead to purchasing an unusable lock.
Neglecting Cable Material and Length Specifications
Another common mistake is underestimating the importance of cable construction and length. Generic cables may appear similar, but their resistance to cutting varies significantly. The LORADAR cable, for example, highlights its construction from "strong twisted steel" as opposed to weaker iron wire, a critical detail for deterring determined thieves. Furthermore, cable length, typically around 6 feet, might not be adequate for all setups. Users often find themselves with insufficient reach to a secure anchor point, compromising the lock's effectiveness if the cable is taut or forces an awkward device placement.
Failing to Secure Peripherals and Accessories
Many users focus solely on securing their primary computer, neglecting valuable peripherals. This leaves monitors, docking stations, and external drives vulnerable to theft, even if the main device is locked. The Kensington Desktop & Peripherals Locking Kit 2.0 directly addresses this oversight by including two adapters and a cable trap, designed to secure multiple accessories alongside a desktop PC. Without such comprehensive solutions, an attacker could easily detach and steal expensive peripherals, leaving the central unit secured but the overall workstation compromised.