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This item is getting something of an undeserved rap here...
on July 2, 2005
*** 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. :-(
(Note that this review was originally posted in 2005, so it's been a LIFETIME for an electronic device and the DUB-H7's you buy today are likely quite dissimilar insofar as their physical construction goes compared to the ones from 2005.)
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.