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Kensington UH4000C 4 Port Powered USB Hub 3.0 with 15W/3Amp Power Adapter (K33979AM)

4.1 out of 5 stars 14 customer reviews
List Price: $44.99
Price: $39.94 & FREE Shipping
You Save: $5.05 (11%)
Only 4 left in stock.
Estimated Delivery Date: April 21 - 26 when you choose Standard at checkout.
Ships from and sold by Puremobile.
Powered 4 Port
  • Enter your model number above to make sure this fits.
  • Add 4 USB ports for simple device expansion
  • USB 3.0 technology for transfer speeds up to 5 Gbps, which is 10x faster than USB 2.0
  • 3 AMPs are available to fast charge smartphones and/or a tablet when hub is plugged into a wall outlet for external power
  • Plug & Play installation with no driver downloads necessary
  • Charging ports are compliant with USB BC 1.2 standard and compatible with BC 1.2 devices such as iPad 4th gen, iPad Air and iPad mini (check your device specs)
  • Charging ports are compliant with USB BC 1.2 standard and compatible with BC 1.2 devices such as iPad 4th gen, iPad Air and iPad mini (check your device specs)
  • Add 4 USB ports for simple device expansion
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Frequently Bought Together

  • Kensington UH4000C 4 Port Powered USB Hub 3.0 with 15W/3Amp Power Adapter (K33979AM)
  • +
  • Asus VE228H 21.5-Inches LCD Monitor
Total price: $144.94
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This item: Kensington UH4000C 4 Port Powered USB Hub 3.0 with 15W/3Amp Power Adapter (K33979AM)
Customer Rating 4 out of 5 stars (14) 4 out of 5 stars (5530) 4 out of 5 stars (1175) 4 out of 5 stars (1835)
Price $39.94 $16.99 $31.99 $39.99
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Puremobile Amazon.com Sunvalleytek AnkerDirect
Color Black Black Black Information not provided
Dimensions 8 inches x 1.9 inches x 5.3 inches 0.63 inches x 3.57 inches x 1.59 inches 0.91 inches x 5.71 inches x 1.73 inches 0.91 inches x 5.71 inches x 1.73 inches
Item Package Weight 0.75 pounds 0.4 pounds 1.5 pounds 1.35 pounds
Number Of Ports 4 4 9 10
Add to Cart Add to Cart Add to Cart Add to Cart

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Product Information

Model:Powered 4 Port

Technical Details

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Summary : Screen Size, Screen Resolution, Graphics Coprocessor, Graphics Card RAM
Number of USB 3.0 Ports 4
Other Technical Details
Brand Name Kensington
Item model number K33979AM
Operating System PC; Mac
Item Weight 12.8 ounces
Product Dimensions 1.9 x 5.3 x 8 inches
Item Dimensions L x W x H 1.9 x 5.3 x 8 inches
Color Black

Additional Information

ASIN B00OD37T9A
Customer Reviews
4.1 out of 5 stars 14 customer reviews

4.1 out of 5 stars
Best Sellers Rank #17,980 in Computers & Accessories (See top 100)
#932 in Computers & Accessories > Networking Products > Hubs
Shipping Weight 12 ounces (View shipping rates and policies)
Date First Available October 15, 2014

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here

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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsThe Kensington Hub works well to extend USB for Apple MBP laptops and powers iOS devices reliably.
By A. M. Rosa on April 29, 2015
Style Name: Powered 7 Port Verified Purchase
It seems to work perfectly with my MacBook Pro with Retina display (Mid 2012) running Yosemite. I haven't done any speed test benchmarking, but there don't seem to be any bottlenecks in data transfer. iTunes updates of an iPhone or an iPad seem to take about the same amount of time as when I connect them directly to the laptop's USB's port directly.

The port also acts as a charging station. It provides enough power to each port to charge iPhone and iPad, whether or not the computer is turned one or even attached, though I haven't tried doing both devices at the same time.

I basically got the port to extend the number of USB devices I could attach to my laptop at that same time as I keep a USB drive connected to my laptop with data all the time, leaving only one free port for accessories. With this I can keep my extended keyboard, iOS device, and other USB devices plugged into the hub and it does not require swapping plugs constantly. It is easy to reconnect everything when I get back home, as I only have the one USB cord to plug in and then I am leaving, it is just the one cord that needs to be removed.

Unlike other USB hubs I have had in the past, this one seems to work really well. Almost effortlessly.
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3.0 out of 5 starsit's fine.
By Joe K* on January 12, 2016
Style Name: Powered 4 Port Verified Purchase
There's a significant buffering latency such that if you're thinking about connecting an audio device to this thing, you'd hear stuttering and lag.
Other than that, there's not much to say, it's fine.
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5.0 out of 5 starsUnit works great and does exactly what it said it would do
By RPH on January 16, 2016
Style Name: Powered 7 Port Verified Purchase
Ordered around 10:00 PM at night and because I paid for next day delivery it was delivered before I woke up! Unit works great and does exactly what it said it would do! Highly recommend Amazon and the USB Hub!!
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2.0 out of 5 starsUSB 3.0 - Major Engineering Design Flaw Limits Number of Devices.
By Scott H Stacher on February 25, 2016
Style Name: Powered 7 Port Verified Purchase
Read up on the device limitations of USB 3.0. It is a MAJOR Industry Wide Failure and Design Flaw that limits the number of devices on USB 3.0 systems. Wish I knew about before I bought my USB 3.0 laptop. If we all stop buying USB 3.0, maybe the industry will fix it.
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1.0 out of 5 starsTight cost controls make me move on from this brand
By Robert J. Thomas Sr. on August 29, 2015
Style Name: Powered 7 Port
Received it today, plugged it in today in the manner required, am returning it tomorrow since none of the ports work. No one's perfect, but what really frosts me is that evidently to save a few pennies on packaging the unit has a two-part AC plug unlike any I've ever seen. The part at the end of the cord has prongs too short to fit into a standard AC outlet so they include the rest of it as a separate part which snaps onto the truncated part at the end of the cord, then it works since the unit lit up.

Problem was trying to get it apart to stuff it back into the box. May be possible, but in order to avoid possibly damaging it I just stuffed it back into the box which now looks like it's with child.

Worse than that, thinking about long-term quality, can you really trust a company to give you quality when their cost controls are so tight that they're trying to save a few pennies by making the product box smaller, and which seems to have so little foresight that it doesn't anticipate (or perhaps care) about the return problem.

My answer is "no" so I'm moving on to another brand even though my previous portable hub from them was bought in 11-2011 and just died, which I suppose is good service.
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4.0 out of 5 starsTethering issue with USB 2 connected to USB 3 port via USB 3 hub.
By Aman G. on November 21, 2015
Style Name: Powered 7 Port Verified Purchase
The product is very pocketable and comes with a AC adaptor - in case you need additional power.

My laptop has two ports- one USB 2 and other USB 3.

When my cellphone is tethered (using USB 2) through USB 3 hub with USB 3 port on my laptop, the device is not recognized. To make it recognize my cellphone that is tethered to the USB 3 hub and attached to the USB 3 port i have to restart my laptop with my cellphone still tethered to the USB 3 hub attached to the laptop. Also sometimes the mouse is not recognized on some USB slots of the hub.

To me it looks like it is more of a USB 2 and USB 3 communication problem than a problem with the hub. But i am not sure.

However this is not a big issue as there are workarounds.
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5.0 out of 5 starsDoes what it's supposed todo
By Brizk on August 27, 2015
Style Name: Powered 7 Port Verified Purchase
Perfect. Works as advertised.
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