Senin, 06 April 2015

AmazonBasics 7 Port USB 2.0 Hub with 5V/4A power adapter

AmazonBasics 7 Port USB 2.0 Hub with 5V/4A power adapter..


AmazonBasics 7 Port USB 2.0 Hub with 5V/4A power adapter

Grab Now AmazonBasics 7 Port USB 2.0 Hub with 5V/4A power adapter By AmazonBasics

Most helpful customer reviews

334 of 352 people found the following review helpful.
5The best multi port hub that I have seen
By Timothy B. Riley
Watch Video Here: http://www.amazon.com/review/R2ICWPTUICOGD I travel often and need to take a portable office with me. As a professional presenter and it seems like I am always making changes to my presentations right up to the last minute. I bought a mini hub similar to this one because I got tired of working with a limited number of USB ports on my travel computer. I purchased an unknown brand from a local store and it would not support all of the devices that I needed. As soon as I received this one I recreated the same situation that failed with my cheap hub and everything worked just fine. The hub supported my portable hard drive, a memory card and reader, a USB memory stick and my GPS. I had no problem at all running all of these devices through this hub.

When my other hub failed I when to the store that I purchased it from and they told me to call the manufacturer. It was a no-name brand and I couldn't find a way to contact them. I have never had a problem with a product that I have purchased from Amazon that they hasn't made right. I expect that since their name is on this product they would certainly make sure that I was taken care of if ever this hub failed. That means a lot to me as a consumer.

159 of 169 people found the following review helpful.
54-Port Hub Does The Job....
By Jeff Kraus
There really isn't a whole lot to say about a USB hub. Obviously, as the description states, it supports up through the USB 2.0 standard. It's extremely lightweight and small, taking up about half the area of an average smartphone. It has a single amber LED that lights when power is reaching it.

The hub works flawlessly for me. Since it has no separate power supply, its ability to handle higher-powered devices that draw from the USB cable is limited to the port you are connecting it to.

(Edit 03/22/11) ---------
I'm seeing some other reviews that aren't entirely accurate regarding the unpowered nature of the hub, so it's worth expanding on. The USB hub can handle exactly as much power as the port that it is plugged into is capable of providing. For example, many keyboards have a USB port that can be used to plug in a mouse. Generally that is a low-powered port that is incapable of running a portable hard drive, charging an iPod, etc. Plugging the hub into that port would present the same limitations.

On the other hand, plugging the hub into a port directly on the computer's chassis is going to provide significantly more power to the hub. Higher powered devices such as a DVD burner, hard drive, etc. will work -- provided they work plugged directly into that same port the hub is plugged into. And if multiple devices are connected simultaneously, the power they draw combined must still be less than the maximum power available to the port.
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I tested the hub in both Windows 7 (64-bit) and Fedora 14 x86_64 Linux (on a dual-boot Dell Inspiron 15R) with no problems whatsoever. No drivers are required, so it's effectively a seamless addition to any system. Plugging in a USB memory stick or 500GB WD Passport portable hard drive resulted in the item in question being mounted exactly as if the hardware had been plugged in directly. A quick throughput test showed that the hub was perfectly capable of handling the 500GB Passport drive while it was playing a 720p high definition mp4 video.

I docked one star for the price, which at the time of this writing, is shown as more than double the price of other functionally equivalent mini-hubs such as the Belkin 4-Port Ultra Mini Hub and the Connectland CL-U2MNHUB-4B 4-Port USB Mini Hub. If the price goes down to something that is more in line with these other hubs, I will amend the rating.

Other than the price though, I found no issues with its build, functionality, or usability. If the cost comes down I can honestly, whole-heartedly recommend this hub.

*** Update 08/06/2012 *** The price has indeed gone down by more than 50% since this review. As such, I have amended the rating as promised. Oh, and the hub is still performing as it was when I originally posted the review.

29 of 31 people found the following review helpful.
3Problem when used with USB audio
By RKL
This hub seems to have a problem when an USB audio device is connected through it. If there's any electrical power line interruption (fridge starting), it causes a drop in the audio. For all other uses, it worked fine.

Honestly, many hubs seem to have this issue, including the Pluggable and CablesToGo ones. The Belkin and the one built into my Dell LCD monitor do not seem to have this problem. (I've bought a lot of hubs looking for a good one! I knew they exist bec my Dell LCD's built-in worked but I needed one for a different PC.)

It must be a matter of one chip set vs another but I do not know which chipset is in which hubs.

And yes, I do have some decent power filters / voltage regulators, but they don't respond quickly enough to short drops in voltage. (Online UPS would work fine but those things are noisy!!!)

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