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D-Link DUB-H7 High Speed USB 2.0 7-Port Hub |  | Brand: D-Link
List Price: $46.99
Buy New: $24.99
as of 7/31/2010 11:52 CDT details
You Save: $22.00 (47%)
New (38) Used (2) from $23.99
Seller: CompUSA
Rating:  482 reviews
Format: CD
Platforms: Mac, Windows
Media: Electronics
Autographed: No
Memorabilia: No
Number Of Items: 1
Batteries Included: No
Operating System: N/A
Shipping Weight (lbs): 0.9
Dimensions (in): 6.8 x 3.3 x 11.3
MPN: DUB-H7
Model: DUB-H7
UPC: 100000001141
EAN: 0100000001141
Availability: Usually ships in 1-2 business days
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| Features:
| • | PC & Mac Compatible | | • | Up to 40 Times Faster* than USB 1.1 | | • | Backwards Compatible with USB 1.1 |
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| Editorial Reviews:
Product Description
The D-Link DUB-H7 2. 0 is a Hi-Speed USB 2. 0 7-port hub that is backward compatible with USB 1. 0 and 1. 1.It provides an out of the box industry standard that allows connection of up to seven USB peripherals or devices to your USB ready PC or Mac.The D-Link DUB-H7 is targeted at PC and Mac users that are expanding the number of USB ports on their system. Designed to provide quick and easy access, the D-Link DUB-H7 provides seven type "A" downstream ports for connecting USB peripherals, devices, or other USB hubs.A single type "B" upstream port connects the DUB-H7 to the host computer or another USB hub, enabling up to 127 devices to be connected by cascading multiple hubs.Configured directly by the operating system, the D-Link DUB-H7 operates seamlessly with both Microsoft Windows and Apple Macintosh Operating Systems. As a standard USB hub, the D-Link DUB-H7 buffers USB data from any attached peripheral in compliance with USB specifications to provide an invisible extension of the USB bus.Supporting both low speed (1. 5Mbps and 12Mbps) and High speed (480Mbps) devices, each port creates a bridge between the peripheral and host computer. Diagnostic LEDs provide port status for each port and power status.The DUB-H7 includes a Quick Install Guide, a 6-foot Hi-Speed USB 2. 0 certified 'A' to 'B' cable, and an AC power supply.
Amazon.com Product Description
Need to connect lots of devices at blistering speeds? The D-Link QuickMedia DUB-H7 2.0 is the answer, providing seven USB 2.0 ports that are also backward compatible with your USB 1.0 and 1.1 devices. 
USB 2.0 provides plenty of speed for fast data transfers. View the DUB-H7 in detail. | Connect the DUB-H7 to your USB-ready PC or Mac and you're ready to go. With speeds as high as 480 Mbps, USB 2.0 provides plenty of bandwidth for your most data-hungry applications*. Designed to provide quick and easy access, the DUB-H7 offers seven USB downstream ports for connecting USB peripherals, devices, or other USB hubs. A single upstream port connects the DUB-H7 to the host computer or another USB hub, enabling up to 127 devices to be connected by cascading multiple hubs. Configured directly by the operating system, the DUB-H7 operates seamlessly with both Microsoft Windows and Apple Macintosh operating systems. There's nothing to configure -- it just works. Diagnostic LEDs provide port status for each port, as well as power status. As mentioned, the DUB-H7 is backward compatible with USB 1.0 and USB 1.1, allowing you to connect all your existing USB peripherals while easily integrating with your existing network at home or in the office. See a typical setup with the DUB-H7. What's in the Box
DUB-H7, installation guide, six-foot hi-speed USB 2.0 certified A to B cable, and power adapter. *Theoretical USB 2.0 Speed. Actual throughput will vary depending on network conditions and environmental factors.
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| Customer Reviews:
Showing reviews 1-5 of 482
 This item is getting something of an undeserved rap here... July 3, 2005
Joel Kolstad (Wimer, OR USA)
373 out of 385 found this review helpful
*** Note: Several recent comments have stated that this product no longer comes with a worldwide voltage input (100-240V) power supply. That's a shame, and I'd definitely knock a star off the review if I could due to this change on D-Link's part -- I can only imagine it was part of a cost-cutting move. :-(
Original review:
I've had one for about six months now, and it's worked without problems. One of the things I particularly like with it is that it comes with one of the newer "slimline" power supplies that doesn't block other plugs, works anywhere in the world (100-240V), and is more efficient than the old "wall wart" power supplies.
Let me address some of the other comments here:
1) For the guy with the Lexar data card... it is a blight on D-Link's reputation that their technical support was clearly incompetent (this is sadly true of many companies today -- being pushed there in part by the relentless "drive to the bottom" by consumers who often care more about price than quality and support), but I doubt that even a really good company could have helped much. Although the hub may have somehow been at fault, it's also possible the Lexar card had problems -- even if it worked fine in other hubs. For the record, I've used a handful of USB drives with this hub without problems... although not a Lexar brand.
2) Regaridng plugging in a USB 1.0/1.1 device and slowing the hub down -- this doesn't actually happen, at least in the hub I received, but what D-Link is doing is hedging their bets (hence the word "may" -- which unfortunately these days many manufacturers use when the word "will" is more correct!): Inside the hub you'll find a VERY generic hub IC (actually, two of them), and D-Link has a lot of freedom to use different vendors' ICs based on price, availability, etc. All of them are USB 2.0 hubs, but ones without so-called "per port transaction translators" will drop to full speed (12Mbps) if any of the ports have such a device plugged into them. Happily, ICs like this are pretty much extinct today (when USB 2.0 first came out they were around). In any case, your solution of just getting two hubs certainly still applies. I agree this should be a little bit more prominently advertised, but so should a lot of things about USB, WiFi, etc. -- the oft-touted data routes of 480Mbps and 54Mbps (respectively) are pure fantasy, for instance, in real world applications.
Simply Ideal December 19, 2006
Daniel Limbach (Algonquin, IL United States)
15 out of 15 found this review helpful
A usb hub is a simple appliance, right? It either works or it doesn't. Well, there are a few differences among hubs, and I'll point them out. The H7 incorporates the preferred feature in the descriptions below.
1) Externally-powered beats usb-powered most of the time. Usb-powered units divide the available power across all the ports that are in use, so the more plugged in, the less power for each. I have a 4-port usb-powered hub that is only good for products that do not need much power. Things that work well in it are powered external hard drives (or other powered devices), a mouse, or a solid state memory device. High capacity/fast portable hard drives without their own power supply don't work well. They need a lot of juice.
2) Vertical slots almost always beat horizontal ones.
For example:
[|||||||] is better than [-------]
With the slots positioned vertically, I can use all 7 slots without a problem. If they were horizontal, and close together, some of the wider cables would not fit side-by-side. This is especually true with memory card devices. My sd card adapter is so wide, it would prevent another input on either side of it if they were horizontally oriented. I also like that all the slots are on one side of the unit. It's easier to organize cables when they are all plugged into the same area, rather than into several sides of the unit.
3) Smaller and lighter is better. This unit is small and light, but not flimsy. It's the smallest 7-port device I have seen. It can be tucked into any number of spaces, so it fits well into your work space. One feature that would be nice would be a couple mounting slots so I could anchor it to a desk or wall using screws. The only downside of its weight is it can move around the desk, especially if there are several cables plugged in to it. On the plus side, the device is easy to pack and bring on trips.
Overall, I can't think of a 7-port powered usb hub that offers more for less money than the H7.
Works just fine - USB 1.0, 1.1 up to 2.0 March 29, 2005
Charles S. Roaten (Oakdale, LA)
42 out of 49 found this review helpful
I currently have 6 of the 7 sockets connected to different USB devices - some 2.0 and some less.
Each works just fine - even the 2.0 high speed micro drive.
Really Great Piece of Hardware December 24, 2006
Atomicwasteland (Rockville, MD USA)
17 out of 18 found this review helpful
I purchased this product about 6 months ago when I was fed up with all the cables I had to string around just to connect 7 USB cables to my computer. I had to use three different 4-port USB devices and daisy-chain them together (which caused me to waste two ports just in connecting them to each other!)
This product, however, did the same amount of work as my three 4-port USB hubs for 1/3 the cost, 1/3 the hassle, and 1/3 the power cables taking up socket space on my power strip.
Not only is this 7-port d-link more efficient, there is one other key difference. The ports are vertical instead of horizontal. This means that it takes a lot less space than an equivalent 7-port horizontal hub. Why is this? Because it is more efficient use of space. As a result, you can ALWAYS fit your USB microdrive in the usb slot without crowing out a neighboring slot. Sometimes the USB keychain drives are too wide, and it is difficult to insert one into a hub without pressing into the USB item next to it. With the slots being vertical, instead of horizontal, this is never a problem.
One more thing, the power adapter is pretty small, and it is a "sideways" adapter. This means that with optimal placement you might just be able to place it where you only cover one wall socket on your power outlet/power strip.
I am very happy with this purchase, and I would recommend it to anyone who needs more than one four port USB hub. I'll never go back to the 4-porter again...
D-Link Self-powered Seven-port USB 2.0 Hub April 19, 2007
Katherine H. Doubek (Riverside, IL USA)
15 out of 16 found this review helpful
Every day more and more external devices are using USB hubs to connect to a PC. Some of these devices require a significant amount of power. A hub recognizes the dynamic attachment of a peripheral device and provides at least 0.5W of power per peripheral during installation. Under the control of the host PC driver software, the hub can provide up to a maximum of 2.5W of power. For the most reliable operation, I recommend that you use self-powered hubs which plug into an AC adapter. Bus-powered hubs draw their power from the PC's root hub connector and aren't always capable of providing adequate power for high-powered devices such as optical mice.
Self-powered hubs provide the most flexibility for future downstream devices. Incidentally, if you're using a USB hub, don't disconnect it's power supply, don't turn off the hub's power, and don't remove any components while Windows XP is still running. Use the "Safely Remove Hardware" feature in the system tray. I also recommend the use of an uninterruptible power supply.
Showing reviews 1-5 of 482
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