Editorial Product Review:Item Description:Protect your computer with incomparable security, the disc lock. The most advanced disc locking technology is featured with carbon tempered steel core cable, external braided steel sheath, and patented T-bar locking mechanism that attaches to the standard Kensington security slot found in 99% of notebook and computer devices. Sleek styling and design won't block notebook ports or lift a notebook off the desk 6 feet, 4.5mm thick cable Dimensions - Length 6 x Width 7.5 x Height 1.25 inch Weight - 0.5 pounds
Amazon.com Item Description:The Kensington 64343 Micro Saver DS Notebook Lock is one of the most secure ways available to protect your laptop computer from theft, with a patented cable-and-lock system. The Kensington 64343 is constructed of a six-foot cable with three layers of strength, a carbon-tempered steel core, aircraft-grade steel cable, and an external steel-braided sheath. This system also employs a patented, T-bar lock that provides superior lock strength, and advanced, nearly impenetrable disc-lock technology for the ultimate in theft protection. Easy to install and use in the office or when traveling, this system locks into the standard Kensington security slot found in 99-percent of notebooks, as well as many flat-panel monitors, CPUs, projectors, printers, docking stations, tablet PCs, and other devices. This unit features a sleek styling and design that won't block notebook ports or lift a notebook off the desk, and exceeds industry security-lock standards. The Kensington 64343 includes two keys and a rubber tie for cable-cord management, with replacement keys available through the manufacturer, and is backed by a manufacturer's limited lifetime warranty.
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Buyer Reviews
Average Buyer Rating:

Customer Rating: 
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does what it's suppose to
I looped this bad boy around a post that runs across the back of my desk and let it do it's thing. It works great and isn't too hard to get that mangy key in the hole! (sarcasm)
Customer Rating: 
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The lock works!
My daughter uses this lock at college. She has found that it is very easy to lock and unlock her laptop, and is very secure and sturdy. I highly recommend this lock to anyone who wants to keep their laptop secure.
Customer Rating: 
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good deterrent
hooked to a 17" MacBook Pro, stays in there just fine and does not scratch the notebook- there's a rubber bit on the end to buffer it. It is difficult to get it to seat in there just right, you really have to find the right angle and leverage to get the key to turn- but once in, it's snug. A good deterrent but certainly not a total theft prevention device.
Customer Rating: 
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Great Lock!
Highly recommend this lock! It's 6 feet long, so you can stretch it pretty far. You can wrap it around anything you want as well. There's an optional locking device you can buy that will stick to the back of a desk, for example.
The only reason this didn't get 5 stars: It seems like a flimsy system. I'm not willing to stress it to end up ruining my computer, but I worry that if someone really wanted, they'd be able to just break my computer and run off with the laptop.
That being said, the lock does give you a sense of security. I'm in an office where there's a ton of foot traffic, and yet many people do not lock their computers. I can feel confident that if someone wanted to steal a computer, it wouldn't be mine, or if it was mine, they would have to make a scene to break the lock.
Anyway, you'll feel a lot more secure with this lock.