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  • Kensington K38031US Wall/Air Ultrathin Notebook Power Adapter
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Kensington K38031US Wall/Air Ultrathin Notebook Power Adapter


Available from these sellers.
  • Color-coded notebook power tips for quick and easy set-up
  • Slim adapter not only charges your notebook but it also charges your mobile phone, PDA, iPod and more via the built-in USB power port
  • Included EmPower airline cable connects from notebook to airplane power outlet in the seat
  • Included USB charging cable connects to USB power port to charge mini USB compatible mobile devices
  • 30% lighter and 22% thinner than conventional power adapters so it doesn´t add extra bulk in your bag
2 new from $49.99 1 used from $34.99

There is a newer model of this item:


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  • Buy Used and Save: Buy a Used "Kensington K38031US Wall/Air Ultrathin Notebook Po..." and save 73% off the $129.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Technical Details

  • Brand Name: Kensington
  • Model: K38031US
  • Item Package Quantity: 1
  This Product Is ENERGY STAR® Qualified
Products that earn the ENERGY STAR prevent greenhouse gas emissions by meeting strict energy-efficiency guidelines set by the U.S. Environmental Protection Agency and the U.S. Department of Energy--plus they help us all save money while making a difference. Find out more about ENERGY STAR.

Product Details

  • Product Dimensions: 10.8 x 8.3 x 3.4 inches ; 1.2 pounds
  • Shipping Weight: 1.4 pounds
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B001M4HXSA
  • Item model number: K38031US
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (6 customer reviews)
  • Date first available at Amazon.com: January 5, 2009

Product Description

Product Description

Kensington K38031US Wall/Air Ultra Thin AC Power Adapter K38031US Camera Power Adapters

From the Manufacturer

From the Manufacturer Pack all the power you need. The Kensington Wall/Air Ultra Thin Notebook Power Adapter’s low-profile design saves space and stows in seconds. Whether you’re on the ground or in the air, it has the power to charge your notebook and mobile devices.

Power in the Air
The included EmPower cable allows you to power and charge your notebook and mobile devices while in planes equipped with EmPower outlets.  Stay productive even when you’re in the air.

Compatibility
The included notebook power tips are compatible with the world’s top selling notebook.  Multiple tips allow you to use the same power adapter for multiple notebooks.

Charge More Than Your Notebook
With the built in USB power port you can conveniently charge your mobile devices at the same time as your notebook. No need to search for multiple wall outlets in the airport or hotel rooms.  Simply plug in the included USB charging cable to the Kensington Wall/Air Ultra Thin Notebook Power Adapter and power up your mobile phone, MP3 player and more (USB power tips sold separately).



With the included USB to mini USB charging cable you’ll be ready to charge your Blackberry or any other mini USB compatible device.


Feature and Benefits

  • Compatible with the top selling notebook brands: Dell, HP, Compaq, IBM, Lenovo, Toshiba, Sony, Gateway, Acer
  • Color-coded notebook power tips for quick and easy set-up
  • Slim adapter not only charges your notebook but it also charges your mobile phone, PDA, iPod and more via the built-in USB power port (USB power tips sold separately)
  • EmPower cable for charging in standard airline power outlets and wall plug for use in any wall outlet
  • Included USB charging cable connects to USB power port to charge mini USB compatible mobile devices
  • Built-in over-current protection, short-circuit protection, over temperature protectioner.

What's Inside the Box

  • Kensington Wall/Air Ultra Thin Notebook Power Adapter
  • Detachable wall plug
  • EmPower cable
  • Mini USB charging cable
  • Travel pouch
  • Notebook power tips
  • Warranty information card
Learn More About Universal Power Adapters

Universal Power Adapters are a convenient choice for households and businesses that have multiple brands of laptops/netbooks. More compact and portable than standard OEM bricks, Kensington Universal Power Adapters can be shared between Users of different laptop brands simply by exchanging the tips included in the packaging. Also, many of Kensington’s Universal Power Adapters offer additional functionality over standard OEM bricks by including a USB port to allow for charging peripheral devices (i.e. Smart Phone, MP3 Player, Personal Gaming Device) while also charging/powering your notebook.

Kensington’s Universal Power Adapters are a popular replacement to lost or broken OEM adapters.  But most often, users enjoy the convenience of having an additional Universal Power Adapter to keep in their travel cases for use on the road.


Customer Questions & Answers

Customer Reviews

3.8 out of 5 stars
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Most Helpful Customer Reviews

8 of 8 people found the following review helpful By S. Lionel TOP 500 REVIEWERVINE VOICE on May 31, 2009
Verified Purchase
When I got a new laptop, I ordered the Kensignton K38031US to replace an older Kensington Air/Auto/Wall adapter I had. The older one worked, but tips for it are hard to find and I liked some of the features of the newer one. I never used the auto power feature, so I didn't miss it when I got the K38031US.

I was surprised at how small and light it was and even more pleased to see that I didn't need to buy any additional tips - it included tips that fit my work HP laptop, my Dell Mini 9 and my iPod Touch. It also had a USB power jack on the side so that I could charge my Kindle, Palm Treo Pro, Garmin GPS and other devices.

Two items deserve special mention. The first is that, unlike the older Kensington adapter I had, this one does not automatically switch voltage range between 14-17V and 17-21V - you have to do that manually with a slide switch on the bottom of the unit. Before sliding, you have to depress a small button with a pen or other pointed object so that the switch will move. I don't have any devices that need the lower range, so that's not an issue for me. The ranges are color coded (blue and green) and the tips are similarly coded to help you figure it out.

The second is that many of the tips are right-angle plugs. This is wonderful! With the older adapter, all of the plugs were long and straight, which put a lot of stress on the device's power jack. A right-angle plug lessens the chance of damaging the device by pressing on the connector.

The detachable AC cord is about six inches long - the idea is that the adapter will hang from the AC outlet. It's a two-prong cord. (Of course, the adapter is compatible with worldwide voltage and frequency.
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5 of 5 people found the following review helpful By A. Hand on October 21, 2009
I was hoping for a non-proprietary solution to power my laptop on a cross-country flight. However, although this is listed as an "airline" adapter, it is not compatible with the in-flight jacks offered on American Airlines -- or any other airline that uses a cigarette-sytle adapter. In-flight connectivity with this Kensington adapter is limited to the EmPower connector -- Disappointing since many other manufacturers include an EmPower-cigarette adapter (e.g., Dell, Apple, Lenovo, Targus).

The USB charging capability is only available when connected to an AC (wall) power source. For in-flight, you use the empower to "laptop tip" cable, bypassing the power pack entirely. So if you really only need to add an airline adapter to your bag (you already have a wall adapter), then you're paying a lot of money for a transformer brick that you might not need. And if you plan to charge your iPod, iPhone, or other USB-powered device in-flight, this is may not be the solution for you (you need to plug them into a laptop, and connect the laptop to the airline power cable).

Note that the chart comparing the features of the various Kensington adapters in the Amazon listing (at the time of this review) is inaccurate: it indicates that the K38031US "plugs into airplane or car outlets." It will not plug into a car outlet.

In the end, I was better off buying the proprietary adapter from my laptop manufacturer for about the same price.
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4 of 4 people found the following review helpful By Jeffery S. Norman on January 9, 2010
Verified Purchase
I have been using the older 120W "Ultra" thin Kensington universal power adapter for several years. Alas, now that Kensington has its latest and greatest model (the product I am reviewing here), they stopped supporting the older one (and more importantly, it is impossible to get microUSB or Lenovo X series power tips for the older model). So I decided to buy this to replace my older model.

I am very disappointed, because the newer model is inferior in almost every way.

1) Size and weight. This is about twice as thick, and almost twice as heavy, as compared with the older Ultra thin model. Why on earth would they have made it bigger and heavier??? It is - to be fair - still lighter than the Targus compact model. But still very disappointed that they made it bigger and heavier. On the plus, is is slightly smaller in width (by almost and inch).

2) Compatibility. As far as laptops go, it seems to work fine on my Toshiba netbook, HP Pavillion, and Lenovo X200 computers. However, the USB charging port is very weak. My Blackberry Bold will not charge from it. I also tried charging a Bodymedia device (made to be charged on mini-USB) and no luck. In fact, so far I have not found a single device that does charge! I am sure some phones would probably work ok, but the USB charging port is a bust for me. The USB port on the older model worked just fine FYI so clearly they have cut back on quality or the current is not high enough, etc.

3) Ease of use. A major step back is the fact that certain "blue" adapter tips require you to manually "switch" the adapter to a different voltage range. huh?? The older adapters all automatically selected voltage based on the tip (hence the name Smarttip! that I see they also dropped).
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