100% Brand New 7 Port USB 2.0 Hub with AC Adapter
Perfect for connecting USB 1.1 or 2.0 peripherals such as USB mice, USB Portable Hard Drives, USB CD-R/RW or DVD-ROM drives and USB 1.1 hubs
Plug and Play Device
Supports Windows Vista/XP/ME/2000/98, and Mac OS X 10.2 & up, Linux 9
Dimensions: 3.10" x 1.75" x 1.00"
This review is from: USB Highspeed 7 Port Hub w/ AC Adapter (Silver)I ordered this item 7/09 because my old laptop has only 2 USB ports and a 30GB hard drive. I wanted to attach a mouse, mini-hard drive, external dvd drive, and VHS converter. I knew I needed more power as well. So, I figured this hub with AC adapter was just what I needed. It arrived quickly. OK My excitement was quickly dashed when I hooked everything up and it didn't all work. Specifically: the mini-hard drive, which requires 2 usb ports did not work at all, solo or otherwise. The error message was that the hub did not have enough power. Boo. Then I noted that the included AC adapter was only 2 Amps. When I attached the hub to a 4amp adapter it worked just fine....
This review is from: USB Highspeed 7 Port Hub w/ AC Adapter (Silver)The supplied 5V 1A (not 2A) transformer is low power which almost defeats the purpose of buying a self powered USB hub. If you want to replace it find a regulated wall transformer with a 2.1 mm coaxial power plug, unless you know how to solder on your own plug. If it doesn't say it's regulated then it is unregulated and will cause problems. Any increase in amps is good, but devices don't expect more than 0.5 A per port so more than 3.5 A probably won't help any more (doesn't hurt though).
I haven't had any latency issues on my thumb drive like the other reviewer btw. But it holds small files.
Update: I edited the above to reflect the glitches I've been having with my unregulated transformer. Don't bother; find a regulated one....
This review is from: USB Highspeed 7 Port Hub w/ AC Adapter (Silver)The problem with this hub is that it has horrible latency. If you're planning on plugging a thumb drive or external hard drive into this, forget it. If you're trying to run a keyboard & mouse, it'll work fine. Go from the point of view that anything with an extremely low data rate will work just fine, but anything else is going to have major issues....
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