Naturally, these documents often accompany technology devices — the very devices where we need the most accurate and thorough documentation.
Shopping online for a new USB hub this morning, I was comparing specs on different models, because the prices were so similar that they didn’t provide any good hints relating to the minutia of features and capabilities that might make or break my decision.
Fodder for the blog-mill, is all I can say about this:
The site I was shopping was www.newegg.com. Many of the products have free-form text descriptions of the devices in question. I assumed that they had a staff that wrote these descriptions, but I’m pretty much convinced now that the upstream distributor or manufacturer’s representative populates this information.
I was hoping to find a USB 2.0 hub that was also backwards-compatible with older USB 1.0/1.1 devices. The older devices have a slower link speed, and I honestly wasn’t sure whether all 2.0 hubs had this capability, or not. I also wanted a unit that had an external power supply so that it would pass sufficient power to my downstream devices (like my sweet, sweet Kindle).
Is this one a fit? You tell me.
“Accord with USB 2.0 specification, and downward inclusive USB 1.1/1.0 of the standard specifications Having supported the voltage and electric current in the twinkling of an eye to protect the function in year, the load of the electric current protects and prevents the electricity from stopping causing and damaging.”As Lisa Simpson said, “I know those words, but that sign makes no sense.”
Hooookay... uh... maybe it does, but if it does, I’m stumped. I’m just not sure at this point.
So I searched for products from the same vendor, to see if maybe they had translated this correctly, by accident, elsewhere.
It turns out they also manufacture a mouse ...
“Mouse 27MHz Radio Frequency Technology Design. 256ID's free from interferency. Auto Power Sving Mode. IBM PC Compatible. Compatible with Windows 98/ME/2000/XP.”... and a keyboard ...
“Membrane Switch Activation Mechanism Ergonomic design Handy feelings Comfort to fingers 10million key Interface switch life cycle Ready for Windows”... and I found another hub, with a suspiciously-familiar, but not-quite-the-same description:
“Accord with USB 2.0 specification , and downward inclusive USB 1.1/1.0 of the standard specifications. Support Full speed (480Mbps ) , High speed (12Mbps ) , Low speed (1.5Mbps ) three kinds of speeds. Having supported the voltage and electric current in the twinkling of an eye to protect the function”It hurts my brain (not to mention violating my conscience) to see and replicate such butchering of punctuation and spacing, but I decided to show it like it is on the site. They expanded it a little to point out the backwards-support of USB 1.0/1.1. In fact, they expanded it a lot, even pointing out to us that we were for sure talking about “three kinds of speeds.”
So both products do something in the twinkling of an eye, to protect something in year, and it’s related to stopping, or possibly not stopping, electricity.
What it seems they’re saying is that it protects itself and the connected devices in the event that one device pulls an excessive amount of power, by shutting off power to that device “in the twinkling of an eye” — or possibly after a year.
Seems to me that a year is slightly longer than the twinkling of an eye.
Incidentally, has your eye ever twinkled? How long did that take? I need to know, because of some stuff I’m doing with my computer.
Having already decided against this particular product, I nevertheless went to the manufacturer’s web site to see if perchance there be a better description. It’s definitely “better”... but not the kind of “better” that I had in mind.
Product Specification:I guess they set me straight, huh? Huh.[yes, the site actually says “PS.”]
- Accord with USB 2.0 specification , and downward inclusive USB 1.1/1.0 of the standard specifications.
- Support Full speed (480Mbps ) , High speed (12Mbps ) , Low speed (1.5Mbps ) three kinds of speeds.
PS: It is different to some extent to read the speed of writing because of different computer hardware structure and operating system.Having supported the voltage and electric current in the twinkling of an eye to protect the function in year,the load of the electric current protects and prevents the electricity from stopping causing and damaging. Is it insert with and hot to insert and draw the function promptly at the same time to support. [“Hot to insert!?” Careful, now... this is a family blog. In fact, that entire sentence is having too much fun for its own good. Luckily, the previous bullet point provides “protection.” You wouldn’t want to have a power surge when you insert... especially without protection... in fact, I suddenly think I understand the “twinkling of an eye” bit. Yow.]Light small and exquisite help the commercial affair hand-carry while going on business. USB concentrator in a four ports can fetch the electricity to use from the computer independently. Mini USB concentrator lets you increase the peripheral equipment on the note type computer whenever and wherever possible. Can USB join port supply power directly , exempt using the voltage transformer. Can another outer DC power transformer of 5V too. Use the voltage: 5 volts. Power consumptive power: 2.5 amperes.
Systematic demand
- Inclusive operating system: WindowME,2000, XP, Mac OS8.6, 9XX, the edition after Mac OS X 10.1.3.
— 2008-09-03 17:30 ETA:
I didn’t even notice this before! Look above. What edition of Mac OS X does it support?! It’s a friggen USB hub! It doesn’t require any drivers! Man, oh man...
— 2008-09-14 09:00 ETA:
I didn’t buy that USB hub, as I mentioned. Instead, and against all better judgment, I bought a Belkin 7 port, lighted, powered hub. Stupid, stupid, stupid.
I hooked it up, out of the box, it lit up, and worked... ish. Generally, if you plugged something into it, sort of, sometimes, it would work. But not really, and not usually... some devices would show up, others wouldn't, some things acted like they perhaps weren’t getting power... bizarre deal.
What was I dealing with, here? Drivers? Surely not! Was it incompatible with the motherboard’s USB equipment? Was it incompatible with the 15-foot active repeater off of which I had it daisy-chained?
I plugged it directly into the PC and it seemed to be just as problematic... went through lots of gyrations... didn’t call support, since there would have been no purpose in that at all. I Googled around, figuring that if the box was just a flaky piece of junk, there would be a lot of online chatter about it.
There wasn’t.
But finally spotted something that made sense. Some guy who had one of these was complaining about how he had to unplug it from power when he turned off his laptop because the lights were so bright. Wait — mine doesn’t light up when the USB port is off... hmmm... could the wall-wart be defective? I pulled out the volt-ohm meter to check it, and unplugged the adapter to see what voltage and polarity to expect... and it rattled in my hand. Ah. No point in really checking it, is there?
So I found another adapter with similar voltage and current capability, and another adapter with a compatible plug, cut, strip, twist, solder, tape... verify with VOM... plug into hub... sure enough, the lights on this hub DO light up without the USB connection present.
Wait. Do they light up both ways? Is it the same exact lights?
The ridiculous answer is yes. If you plug this hub into the PC *or* into the wall, it lights up... exactly the same. So there’s zero hint for the user that you have a bad power supply cord.
With this being resolved, I do now have a working USB hub with a very handy footlight (to see where you’re stepping in the dark) — the hub is under my nightstand, concentrating the sync/charge capabilities of my iPod Nano and Sansa e280, and sync of my Kindle and LG Fusic, keeping them across the room on the nightstand rather than cluttering up my PC work area worse than it already is.
Bottom line: Don’t buy Belkin. Of course, if you already have, then you know this is a bad idea. I should have known better. I really should have.
If I hadn’t gotten it working, at least, I guess, I would now have a USB-powered footlight to allow me to see in the dark during power outages (you know, PC being on a UPS and all that).
